baber/WOPTO huggingface dataset:
Patent JP-2004186548-A (JP)
Title: Solar battery module
Inventor: NISHIHARA YOSHINORI
IPC: H01L31/042
Filed: 2002-12-05
Abstract: <P>PROBLEM TO BE SOLVED: To improve the structure of a terminal box equipped in a solar battery module so as to enhance the efficiency of cable wiring together with a simplification of a wiring work when a roof, etc. is covered with the many solar battery modules to build a solar battery power generation system.  <P>SOLUTION: The solar battery module is obtained by attaching the terminal box 3 to the rear surface of a solar battery body 2, wiring in series and in parallel between the modules and between output buses via an output cable connected to the terminal box and building the solar battery power generation system. In the solar battery module, the terminal box 3 is formed in a box type case 3a with a cover. An output lead wire 9 connected to the output terminal of a solar battery is drawn in the case. Two connectors 10-1, 10-2 corresponding to the polarities of the output lead wires for connecting the cable are distributed to left and right wall surfaces of the box type case 3a. Further, both the connectors are respectively connected to the output lead wires 9 via a branch connection wire 11.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004180649-A (JP)
Title: Heating evaporator
Inventor: KITAMURA KAZUO
IPC: A01M1/20
Filed: 2002-12-06
Abstract: <P>PROBLEM TO BE SOLVED: To obtain insecticidal effect and minus ion effect by one heating evaporator.  <P>SOLUTION: The evaporator body 3 has a structure having a heating body unit 13 for heating a liquid-absorbing core 21 of a liquid container 31, a minus ion-generating device 15 equipped with a minus ion-generating electrode 20, and an electric power source plug becoming the electric power source of the heating body unit 13 and the minus ion-generating device 15, and releases a liquid medicine 35 from the liquid-absorbing core 21 heated by the heating body unit 13 and minus ions from the minus ion-generating electrode 20 from an evaporating port 11 to the outside.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004193642-A (JP)
Title: Digital camera
Inventor: KUBOTA MASAKATSU
IPC: H04N5/765
Filed: 2002-12-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a digital camera capable of exhibiting the number of imaging available images after deletion to a photographer in the case of deleting photographed image data.  <P>SOLUTION: In an image delete mode, a CPU 82 calculates the estimate of an image data size (recording image capacity X) in the case of making new photographing on the basis of current compression rate setting or the current setting of the number of photographing pixels of recording image quality. The CPU 82 acquires a residual capacity R of a recording medium and a display image capacity D of a reproduced image displayed on a liquid crystal monitor 38. The present number of imaging available images T calculated from the residual capacity R of the recording medium and the number of imaging available images S after the deletion calculated from a capacity resulting from adding a capacity increase obtained in the case of deleting the image deleted to the present capacity are calculated respectively. The liquid crystal monitor 38 displays the present number of imaging available images T and the number of imaging available images S as image information together with the deleted image.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004189776-A (JP)
Title: Chlorine-containing resin composition for hose
Inventor: ANIBE SHINJI
IPC: F16L11/06
Filed: 2002-12-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a chlorine-containing resin composition for hoses which can form hoses having excellent water resistance and oil resistance.  <P>SOLUTION: The chlorine-containing resin composition for hoses comprises 100 pts.mass chlorine-containing resin, 20-100 pts.mass plasticizer component (A), 0.001-10 pts.mass alkaline earth metal salt stabilizer component (B), 0.001-10 pts.mass zinc stabilizer component (C), and 0-200 pts.mass other additive component (D). Here, the plasticizer component (A) comprises 40-100 pts.mass polyester plasticizer having an average molecular weight of 500-5,000 to be obtained from an aliphatic diol component (a1) having 2-methyl-1,3-propanediol as the essential component, an organic dicarboxylic acid component (a2) having adipic acid as the essential component, and an end terminator (a3) composed of a monovalent aliphatic alcohol or a monovalent aliphatic organic acid.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004191090-A (JP)
Title: Continuous wave determination apparatus
Inventor: INADA MINORU
IPC: G01S7/292
Filed: 2002-12-09
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem that the level of CWs (Continuous Waves) has temporarily varied due to the effects of disturbance, interference, etc. and that CWs have been mistakenly recognized as pulses in the case where the level of CWs has exceeded a threshold value for pulse detection since a reception signal has been analyzed only by the threshold value for pulse detection in a pulse analyzer.  <P>SOLUTION: By providing this pulse data analyzer with a threshold dedicated for CW detection for detecting CWs separately from the threshold for pulse detection, an erroneous recognition of CWs as pulses is reduced, and the accuracy in pulse data analysis and identification processing is improved.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003234454-A (JP)
Title: Magnetic memory device having soft magnetic reference layer
Inventor: SHARMA MANISH
IPC: G11C11/16
Filed: 2002-12-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a magnetic memory device having a soft magnetic reference layer.  <P>SOLUTION: The magnetic memory device (10) comprises first and second ferromagnetic layers (12, 14). Each ferromagnetic layer (12, 14) has magnetization which can be directed to any one of two directions. The first ferromagnetic layer (12) has a coercive force higher than that of the second ferromagnetic layer (14). The magnetic memory device (10) further comprises a structure (20) for forming a closed flux passage in conjunction with the second ferromagnetic layer (14).  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004203961-A (JP)
Title: Liquid detergent composition
Inventor: ISHIKAWA AKIRA
IPC: C11D3/33
Filed: 2002-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a liquid detergent composition excellent in deterging power and raw material odor-suppressing effects.  <P>SOLUTION: This liquid detergent composition comprises (a) a nonionic surfactant, (b) a specific alkali agent, (c) a compound bearing a carboxylic group and/or a sulfone group, and an amino group and/or an imino group in one molecule and having a molecular weight of at most 200, and (d) water, each in a specific ratio, and has a pH of 7.5-12 as measured at 20°C according to the method prescribed in JIS K 3362, 1998.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004051223-A (JP)
Title: Sealing device
Inventor: SUNG HAN-JUN
IPC: F16J15/04
Filed: 2002-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a sealing device with which an opening part of a sealing package can be sealed easily by anyone, and objects can be filled into the sealing package depending on consumers' preferences.  <P>SOLUTION: Features of a sealing device which seals a sealing package filled with objects includes followings: body casing, the first sealing member set in the main body casing, the second sealing member allocated facing the first sealing member, movable supporting part which supports the second sealing member enables proximity and elongation toward/from the first sealing, and a heater which carries out the heating fusion of the sealing package set at least either of the first sealing member or the second sealing member and is laid between both of members.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004204917-A (JP)
Title: Hybrid guiding device for machine tool
Inventor: KAI YOSHIAKI
IPC: B23Q1/26
Filed: 2002-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a hybrid guiding device for a machine tool that can suppress waving and improve necessary damping capacity without requiring a complicated mechanism.  <P>SOLUTION: In this device, a rolling guide constituting a primary guide as a reference of liner motion of a moving body on the base of the machine tool and a skid guide as a secondary guide complementing the rolling guide are combined. The skid guide is provided with a pair of sliders 20a, 20b that sandwich and slide on a pair of slip surfaces 16a, 16b provided on the base and extending parallel to guide rails 14a, 14b of the rolling guide; skid guide main bodies 19a, 19b that have notch portions 21a, 21b formed between slider holding portions 29a, 29b and fitting portions 28a, 28b; and a pressing means that presses the sliders 20a, 20b against the slip surfaces 16a, 16b by elastically deforming the notch portions 21a, 21b.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003209014-A (JP)
Title: Magnetic roll assembly and electrostatic photocopy machine composed of magnetic roll assembly
Inventor: JONES ROBERT T
IPC: G03G15/09
Filed: 2002-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a magnetic roll assembly that can be assembled easily and accurately, and can facilitate its reprocessing and reproduction.  <P>SOLUTION: A magnetic roll assembly 100 comprises; a roll core 110 made of a first material and having a longitudinal axis; a plurality of positioning members that position belt-shaped magnets 120, 122 and 124, and are located at an outer surface and made of the first material; and the plurality of belt- shaped magnets 120, 122 and 124 to be positioned on the plurality of positioning members on the external surface. Each of the plurality of belt-shaped magnets has at least a first surface, a second surface and an engaging part that is located at least one either of the first and second surfaces, of which at least the one surface is at a symmetrical position with one of the plurality of positioning members for the purpose of positioning and mounting the plurality of belt-shaped magnets at the roll core 110.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004205719-A (JP)
Title: Winding type optical fiber cable
Inventor: KAMIYAMA HIDEKI
IPC: H01B11/00
Filed: 2002-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a winding type optical fiber cable whose optical fibers 22 can be protected against an external shock without requiring an optical fiber protection cover.  <P>SOLUTION: The optical fiber cable comprises a spacer 2 having slits formed along the longitudinal direction, optical fibers 4 stored in the slits 3 of the spacer 2, cover bodies 5 which cover opening parts of the slits 3 storing the optical fibers 4, and a protection layer 7 provided around the outer circumference of the cover bodies 5, and it is characterised in that the cover bodies 5 are formed of hard bodies.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004205320-A (JP)
Title: Centrifugal force loading tester
Inventor: ODATE MANABU
IPC: G01N3/08
Filed: 2002-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a centrifugal force loading tester dispensing with an oiling device in preparation for power outage and rotating at a high speed by a small-sized rotation driving means.  <P>SOLUTION: This centrifugal force loading tester is used to apply centrifugal acceleration to a test specimen 13 thereby testing its behavior, comprising a rotary shaft 4 vertically provided in the middle of a cylindrical pit 1 and rotatably journaled on its upper and lower end sides, a rotary arm 10 with its intermediate part fixed to the rotary shaft 4, a rocking stand 12 rockably journaled on both end sides of the rotary arm 10 and mounted on its one side with a specimen container 14 stored with the test specimen 13, and a rotary drive means 3 installed on a bottom part of the pit 1 and directly coupled to the rotary shaft 4 for rotating the rotary shaft 4 at a high speed. Since this dispenses with reduction gears, oiling the reducing gears is dispensed with, and it is not necessary to separately install auxiliaries such as oiling means dispensing with electric power in preparation for power outage, etc.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004204076-A (JP)
Title: Water-based ink composition
Inventor: MOMOSE MASAYUKI
IPC: C09D11/00
Filed: 2002-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a water-based ink composition which has a high O.D. value (optical density), by which the emergency of microorganisms, fungi and the like with time is effectively inhibited, and which hardly causes problems of generation of a foreign matter, deterioration of reliability in clogging, etc.  <P>SOLUTION: The water-based ink composition comprises at least an aqueous medium, a self-dispersible pigment dispersible and/or dissolvable in water without using a dispersant, and an antiseptic and antifungal agent. The antiseptic and antifungal agent at least has a structure represented by general formula (I) (wherein, X and Y are each a hydrogen atom or a halogen atom; subscript n is the number of repeated ethylene oxide units, and an integer of 1-10).  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004205927-A (JP)
Title: Optical unit and its manufacturing method
Inventor: ISHIDA KAZUO
IPC: G11B7/22
Filed: 2002-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide an optical unit which hardly exerts influence of dew condensation on optical performance and its manufacturing method.  <P>SOLUTION: The method for manufacturing the optical unit is characterized in that when the optical unit is assembled by combining three optical elements made of resin in one body, at least one of opposite optical functional surfaces of the optical elements have a gap and the assembling operation is carried out under reduced pressure.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003263594-A (JP)
Title: Method and device for transferring information and storage medium storing information transfer process
Inventor: KAWAMURA HIROYUKI
IPC: G06Q50/00
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To heighten convenience of information management by improving an advertisement effect for an information transmitting person by more quickly transferring information desired to be notified to a user and by more quickly acquiring latest information from the information transmitting person for the user.  <P>SOLUTION: The information transmitting person has a notification page 32 and an update check file 33 to be rewritten at update of the Web 34 and provides a user tool A for Web access equipment 3. The user tool A automatically acquires the update check file 33 of the information transmitting person and automatically confirms update of the notification page 32, and notifies the user of the update by an emphasis display when there is update. By the emphasis display, the user can more quickly acquire the latest notification page 32.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004210077-A (JP)
Title: Tail lamp supporting structure of vehicle for travelling on irregular ground
Inventor: TAKAHASHI SHINJI
IPC: B60Q1/44
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To reduce costs of parts around a tail lamp (a fender, a mud guard, etc.) and costs of forming dies of these parts and to prevent an impact to the tail lamp from outside by improving a tail lamp supporting structure of a vehicle for travelling on a leveled ground.  <P>SOLUTION: The tail lamps 48, 48 are supported by the mud guards 47, 47 on the vehicle for travelling on an irregular ground (non-leveled ground) on which upper parts of rear wheels are covered with rear fenders 46, 46, respectively, the mud guards 47, 47 are mounted on these rear fenders 46, 46, respectively, and the tail lamps 48, 48 are arranged in the neighborhood of the rear fenders 46, 46. Consequently, irregularities formed on the mud guards to avoid interferences with the tail lamps are eliminated, the mud guards can be easily molded and the impact to the tail lamps from outside can be prevented as the mud guards are flexible and they bend even when an interfering obstacle exists on the tail lamps in the middle of travelling. Furthermore, it is possible to simplify shapes of the fenders and to reduce costs of them as the tail lamps are not mounted on the fenders.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003235821-A (JP)
Title: Catheter having multiple spines each having electrical mapping and location sensing capabilities
Inventor: FUIMAONO KRISTINE B
IPC: A61B5/296
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide an enhanced catheter particularly useful for mapping the electrical activity in a heart.  <P>SOLUTION: The catheter is provided with a plurality of spines each capable of obtaining electrical, mechanical and locational data. The catheter is provided with an elongated catheter body having proximal and distal ends and at least one lumen extending longitudinally therethrough. Mounted at the distal end of the catheter body is a mapping assembly having at least two spines, each having a proximal end attached at the distal end of the catheter body and a free distal end. Each spine comprises at least one location sensor and at least one electrode, preferably a tip electrode and at least one ring electrode.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004213776-A (JP)
Title: Flip-flop
Inventor: YANAGIUCHI HIROSHI
IPC: H03K3/3562
Filed: 2002-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a flip-flop which can reduce power consumption and realize high-speed operation independently of a circuit design technique.  <P>SOLUTION: The flip-flop has a 1st-stage latch 11 and a 2nd-stage latch 12 which fetch inputted data when a clock signal is at a high level and the 1st-stage latch 11 includes a presetting part 112 which can set a 1st output node H111 and a 2nd output node H112 to a high level by charging electric charges in them when the clock signal CK is at a low level; and a charging line is constituted in two-stage stack structure of PMOS transistors PT111 and PT115, and PT114 and PT116 and when neither an inputted data input signal D nor an inverted signal Db varies in level, the PT111 and PT115, and PT114 and PT116 are held OFF even when the clock signal CK is at the low level, so that electric charges are charged in the 1st and 2nd output nodes.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003535554-A (JP)
Title: 光伝送システム
IPC: H04B10/18
Filed: 2001-06-01
Abstract: (57)【要約】
この発明は、送信器から受信器に到るまでの光ファイバ伝送路における累積波長分散の変動を効果的に抑制し、大容量光通信を可能にする構造を備えた光伝送システムに関する。この発明に係る光伝送システムは、光ファイバ伝送路における波長分散の変動をモニタするとともに、該波長分散の変動を補償することで、光ファイバ伝送路全体として累積波長分散の変動を抑制する。波長分散の変動は、光ファイバ伝送路の温度変動をモニタすることにより算出するか、該光ファイバ伝送路に併設されたダミーファイバ伝送路にモニタ光を伝搬させることにより算出される。一方、波長分散変動の補償は、送信器から送出される信号の波長を長波長側あるいは短波長側にシフトさせることにより行われるか、分散補償光ファイバなどの分散補償器により行われる。
Patent JP-2004506232-A (JP)
Title: 光ファイバに再外装する方法およびそれにより得られる製品
IPC: B29C39/24
Filed: 2001-08-03
Abstract: 本発明は、光ファイバ（１０）の長さ（１６）の一部で少なくとも部分的に剥がされた光ファイバに再び外装する方法に関する。本発明は、剥がされたファイバの領域（１６）の上に可撓性チューブ（２０）を置く工程と、ポリマー物質（４０）をチューブ（２０）の軸線方向端部を通じてチューブ内に注入する工程と、注入された物質（４０）が、剥がされているファイバの領域（１６）の外面に付着し、かつ、チューブ（２０）の内面に、チューブ（２０）の全長にわたって、付着するように、注入された物質（４０）を重合する工程を備えていることを特徴とする。本発明は、その結果得られた光ファイバにも関する。
Patent JP-2004507431-A (JP)
IPC: C04B7/52
Filed: 2001-08-31
Abstract: A concrete in which metallic fibers are dispersed, obtained through mixing with water a composition including a cement; ultrafine elements with a pozzolanic reaction; granular elements distributed into two granular classes (C<SUB>1</SUB>)>1 mm and <5 MM AND (C<SUB>2</SUB>) ranges from 5 to 15 mm; cement additions; an amount of water E added in the mixture; a dispersant, and preferably a superplasticizer; metallic fibers, in an amount maximum equal to 120 kg per m<SUP>3 </SUP>of concrete, the contents of the various components (a), (b), (C<SUB>1</SUB>), (C<SUB>2</SUB>), (d) and the amount of water E, expressed in volume, meeting the following relationships: ratio 1: 0.50<=(C<SUB>2</SUB>)/(C<SUB>1</SUB>)<=1.20; ratio 2: 0.25<=[(A)+(B)+(D)]/[(C<SUB>1</SUB>)+(C<SUB>2</SUB>)]<=0.60; ratio 3: 0.10<=(b)/(a)<=0.30; ratio 4: 0.05<=E/[(a)+(b)+(d)]<=0.75; ratio 5: (d)/(a)<=0.20. The invention applies to the manufacture of voussoirs without frameworks, of tiles and of elements of the plate, shell type or the like.
Patent JP-2004508164-A (JP)
Title: バッグハウス・エレメント
IPC: B01D46/52
Filed: 2001-08-21
Abstract: バッグハウス又はフィルタバッグとして一般に知られるフィルタ、あるいはバッグ構造体を有するエアフィルタは、フィルタ媒体構造の上流表面にファインファイバ層を配置して、チューブ状又は二つ折り構造のバッグアッセンブリを製造することで作成することができる。フィルタアッセンブリは、内部成分を持つフィルタキャビネットを含む。フィルタ成分はフィルタキャビネット内部に吊り下げられる。フィルタ成分は、フィルタ媒体用のフレーム又は支持体を含む。このフレーム又は支持体は、フィルタバッグを、フィルタバッグがキャビネット内部内のフレームから吊り下げられるように保持する。取り込まれた空気は、キャビネットに入り、フィルタアッセンブリを通過して、キャビネットの外に出る。空気は最初にファインファイバ層を通過し、フィルタ媒体、そして次にキャビネットの外に出なければならない。
Patent JP-2004510932-A (JP)
IPC: F16J15/08
Filed: 2001-10-03
Abstract: The invention concerns a cylinder head gasket designed to be arranged between a cylinder block and a cylinder head with at least an orifice (12) corresponding to a combustion chamber and orifices (14) allowing through means for fixing said cylinder head on said cylinder block, comprising a stack of at least a metal plate (16, 20) including a rib (18, 22) arranged around the orifice corresponding to the combustion chamber, and at least a metal plate (24) serving as wedge, and a wedge, called stopper (26), designed to limit the compression of the rib (18). The invention is characterised in that the stopper (26) and the metal plate (24) serving as wedge are arranged edge-to-edge.
Patent JP-2004511107-A (JP)
Title: 干渉放射線に対して遮蔽された印刷回路基板の製造方法
IPC: H05K9/00
Filed: 2001-10-03
Abstract: 干渉放射線に対して遮蔽された「印刷回路１２」を備え、「電子的構成要素１４」を有する「基板１１」の製造方法は、電子的構成要素１４のために設計された接触点１５上に電子的構成要素１４を位置決めし、電子的構成要素１４の頂部を覆い、印刷回路１２を備えた基板１１上のアース１３と電気的接触する、事前形成された金属化プラスチックフィルム３０を含む遮蔽物２０を付着し、導電性固着材１６の手段によって「印刷回路１２」を備えた「基板１１」上に「電子的構成要素１４」を固着するステップと、印刷回路１２を備えた基板１１上に遮蔽物２０を固着するステップとを含む。
Patent JP-2004511287-A (JP)
Title: 二段テレスコープ型撮影テーブル
IPC: A61B6/04
Filed: 2001-09-14
Abstract: 【課題】撮影装置における撮影テーブルを位置決めするための装置と方法が提案される。 【解決手段】撮影テーブル（１００）は、固定板（１３０）と第２段（１２０）と第１段（１１０）と歯車装置（２００）とを含む。第１段（１１０）は、撮影テーブル上板（１１５）を含む。歯車装置（２００）は、ピニオン歯車（１２９）と、第１段と第２段上に取り付けられた歯車ラック（１１９、１３５）とを含む。この装置の段（１１０、１２０）は、同時に動くように互いに歯車噛合されている。段が互いに歯車噛合されているから、撮影テーブル（１００）は円滑に伸展及び縮退することができる。更に、撮影テーブル（１００）は第１段（１１０）と第２段（１２０）と固定板（１３０）とを通して伸展するから、撮影テーブルのテーブル上板（１１５）はより小形で、しかもより大きな撮影域を有する。 【選択図】図１
Patent JP-2004513938-A (JP)
Title: ホスホジエステラーゼ阻害剤としての（ジヒドロ）イソキノリン誘導体
IPC: C07D409/12
Filed: 2001-11-08
Abstract: Ａｒが式ＩＩａ、ＩＩｂもしくはＩＩｃのフェニル基を表す式Ｉの３，４−ジヒドロイソキノリンおよびイソキノリン化合物は新規の有効なＰＤＥ７阻害剤である。
Patent JP-2004514429-A (JP)
IPC: A24D3/04
Filed: 2001-11-21
Abstract: The invention relates to a foam for purifying and filtrating air, particularly filtrating toxic compounds, such as for instance tar and polycyclic aromatic hydrocarbons (PAHs) from tobacco smoke, and to a method to prepare this foam. The foam according to the invention is a foam comprising cavities and interstitial spaces situated outside of the cavities, the cavities being defined by walls, the walls of the cavities being composed of a crosslinked polymer and possible additives, the average largest dimension of the cavities being in the range of 30-350 mum, a considerable part of the cavities comprising two or more perforations in their walls, the perforations having an average diameter in the range of 5-300 mum, a considerable part of the perforations of adjacent cavities being positioned with respect to each other such that a continuous, non-linear path is formed, the foam having a porosity of at least 45 vol. % the porosity being defined as the volume percentage, based on the total volume of the foam, of that part of the foam accessible to matter passing through the foam, and the foam having a specific surface in the range of 0.1-15 m<SUP>2</SUP>/g.