PATENT CLAIM ANALYSIS

Application Number: 15758911
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-02
Patent Classification: ["425", "145000"]

Abstract:
Injection apparatus for injecting a liquid formulation into a molten polymer at high pressure includes a reservoir containing liquid formulation at ambient temperature and pressure which is arrange to flood-feed pump body  26  of a first progressing cavity pump (pep)  4 . The first pep  4  is driven by motor  6  and is arranged to accurately meter the liquid formulation into a second pep  8  which is downstream of the first pep and is arranged to increase the pressure of the liquid formulation by 200 bar or more. Downstream of pump  8  is a delivery valve  14  arranged to control passage of liquid formulation, via outlet  17 , into pressurised molten polymer stream  75  which is present in an extruder  77.

Claim (Index 33):
Apparatus according to  claim 1 , wherein:\n said first pcp is arranged to feed liquid formulation into an inlet of the second pcp at a pressure which is greater than atmospheric pressure and is less than 500 KPa; said second pcp includes a pump body having an internal volume which consists of the volume of the pump body upstream of a rotor and stator assembly of the second pcp which is arranged to contain liquid formulation introduced into the second pcp via its inlet, said pump volume being less than 200 ml; cavities of the first pcp and/or second pcp have a volume in the range 0.05 ml to 1.2 ml; said second pcp includes a rotor/stator assembly which includes at least 10 cavities; said second pcp is arranged to increase pressure by at least 10000 KPa; said apparatus includes a pressure monitoring device for monitoring the pressure of liquid formulation downstream of a rotor/stator assembly of the second pcp; and a pressure monitoring device for monitoring the pressure of liquid formulation upstream of said second pcp; the ratio of the number of cavities of a rotor/stator assembly of the second pcp divided the number of cavities of a rotor/stator assembly of the first pcp is at least 2; said first pcp is provided upstream of the second pcp and a reservoir is upstream of the first pcp, with the reservoir being connected to the first pcp via a conduit, and a storage container is arranged to deliver liquid formulation into said reservoir. said apparatus is provided in combination with a melt processing apparatus, wherein said outlet of the apparatus for injecting is in fluid communication with an inlet via which fluid formulation can be introduced into a melt stream produced by said melt processing apparatus.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 91.0
- Lexical Diversity: 1.77465
- Patent Class: 425.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14172169', '12452079', '14403729', '15307160', '11044257']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7344031837938028
- 35 USC 102 Novelty (BERT): 0.4782607780670294
- Combined Prediction Score: 0.7087889432211254
- Mean Citation Score: 165.12596399999995
- Max Citation Score: 192.77425
- Similarity Product: 146.6603406337649

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test