Patent EP-2022810-A1 (EP)
Inventor: HOFFMANN BOTHO
IPC: C08G69/40
Filed: 2007-07-25
Abstract: Transparent polyamide elastomer (I), is new. Transparent polyamide elastomer of formula ((R 1>-X 1>-R 2>-X 2>) n) (I), is new. R 1>polyamide-segment, which is formed from (a) 10-100 mol.% of alkyl-substituted bis(aminocyclohexyl)methane and/or bis(aminocyclohexyl)propane and 0-90 mol.% of other cycloaliphatic 6-36C diamines and/or aliphatic 2-36C diamines and/or aromatic 6-36C diamines, where the concentration figures are based on the total amount of diamine in the polyamide segment, (b) aliphatic 4-36C dicarboxylic acids, cycloaliphatic 8-36C dicarboxylic acids and/or aromatic 8-36C dicarboxylic acids and (c) optionally lactams and/or 6-12C aminocarboxylic acids, preferably bis-(4-amino-3-methyl-cyclohexyl)-methane (MACM), MACM isophthalic acid (MACMI), MACM terephthalic acid (MACMT), MACMI/MACMT, MACMI/MACMT/12, MACMI/12, MACMT/12, where the concentration of laurin lactam is less than 50 mol.%, preferably less than 35 mol.%, bis-(4-aminocyclohexyl)-methane (PACM) in combination with 12C-aliphatic dicarboxylic acid, where the concentration of PACM is greater than 40 mol.%, preferably greater than 55 mol.%, 6I/MACMI/MACMT, 6I/6T/MACMI, MACMI/MACM36, MACM6-18, MACM6-18/PACM6-18, lactam containing polyamide such as 12/MACMI, 12/MACMT or 12/MACM6-18, MACMI/m-xylylene diisocyanate (MXDI), MACMI/MXD6 or MACMI/6I/MXDI, MACMI/6I/MXD6, isophorone diamine (IPD), isophthalic acid, terephthalic acid, m-xylylenediamine (MXDA), para-xylylene diamine (PXDA), methylpentanediamine, hexanediamine, trimethylhexamethylenediamine, methyl octane diamine, nonanediamine, decanediamine, dodecanamine, norbornane diamine, 1,3-bis(aminomethyl)cyclohexane, caprolactam, laurin lactam, aminocapronic acid, amino lauric acid, aminoundecanoic acid, alpha , omega -amino acids with 4, 6, 7, 8,11 or 12C atoms such as pyrrolidin-2-one, epsilon -caprolactam, enantholactam, capryllactam, alpha , omega -amino acid 1,4-aminobutanoic acid, 1,6-aminohexanoic acid, 1,7-aminoheptanoic acid, 1,8-amino octanoic acid, 1,11-aminoundecanoic acid and 1,12-aminododecanoic acid, MACM12, MACM18, MACM12/PACM12, MACM18/PACM18 or copolyamide under reference of 6T, 9T, 10T and/or 12T units; R 2>divalent radicals, which are 2-5C polyoxyalkylene, polyolefin, polysiloxane with a number-average molar mass of 200-3000 g/mol (preferably 300-2500 g/mol), optionally substituted 2-36C alkylene, 6-36C cycloalkylene, 6-20C aryl, polycaprolactone, polyesters based on aliphatic or cycloaliphatic dicarboxylic acids and diols, aliphatic polycarbonate and/or copolymers, preferably adipic acid, sebacic acid, dodecane diacid, isophthalic acid, terephthalic acid, cyclohexane dicarboxylic acid, succinic acid, glutaric acid, pimelic acid, cork acid, azelaic acid, undecane diacid, brassylic acid, tetradecane diacid, pentadecane diacid, hexadecane diacid, heptadecane diacid, octadecane diacid, nonadecane diacid, eicosane diacid, japanic acid, 36C or 44C-dimeric fatty acid or naphthalene dicarboxylic acid, ethanediol, propanediol, butanediol, hexanediol, cyclohexanedimethanol, 36C-dimeric fatty diol, 2-4C polyoxyalkylenediol, preferably with a molar mass of 200-2000 g/mol, polycaprolactone-diol with a molar mass of 500-3000 g/mol, preferably 750-2000 g/mol, polyoxyethylenediamine, polyoxyethylenedicarboxylic acid, polyoxypropylenediamine, polyoxypropylenedicarboxylic acid, polyoxytetramethylenediamine, polyoxytetramethylene-dicarboxylic acid with a number average molar mass of 200-2500 g/mol, their copolymers or copolymer with neopentyl glycol; and X 1>, X 2>amide (CONH)- or ester (COO) bonds. Independent claims are included for: (1) a transparent, preferably haze-free article with at least a sphere or a layer made of (I); (2) preparing the article, comprising molding (I) in an extrusion process, injection molding process or an in-mold injection for the article; and (3) the preparation of (I).