Patent ID: 9321878
Filing Date: 2016-04-26
CPC Classification: C08G,C08K,C09D,C09J

Claim Text:
1. A process for the preparation of silylated polyurethane polymer (i) from the reaction of polyol (ii) and/or hydroxyl-terminated polyurethane (iii) with isocyanatosilane silylating agent (iv), or the reaction of isocyanate-terminated polyurethane (v) with amino-functional silane silylating agent (vi) and/or mercapto-functional silane silylating agent (vii), the process comprising (a) employing at least one non-tin urethane-forming reaction catalyst (viii) for the preparation of hydroxyl-terminated polyurethane (iii), isocyanate-terminated polyurethane (v) and/or silylated polyurethane polymer (i), urethane-forming reaction catalyst (viii) being selected from the group consisting of titanium-containing catalyst and zirconium-containing catalyst having the general formula (II): wherein each M is titanium (IV) or zirconium (IV) , and L is a ligand selected from the group consisting of R 4 O—, where R 4 is a hydrocarbon group of from 1 to 10 carbon atoms, F—, Cl—, CH 3 C(═O)CH═CHC(CH 3 )O—, CH 2 ═CHC(═O)O—, CH 2 ═C(CH 3 )C(═O)O—, CH 2 CHC(═O)OCH 2 CH 2 C(═O)O—, CH 2 ═C(CH 3 )C(═O)OCH 2 CH 2 C(═O)O—, and cyclopentadienyl; and (b) adding at least one color stabilizer selected from the group consisting of triphenyl phosphite, diphenyl-alkyl phosphites, phenyl-dialkyl phosphites, tris(nonylphenyl)phosphite, trilauryl phosphite, trioctadecyl phosphite, distearyl-pentaerythritol diphosphite, tris(2,4-di-tert-butylphenyl) phosphite, diisodecyl pentaerythritol diphosphite, bis(2,4-di-tert-butylphenyl)-pentaerythritol diphosphite, bis(2,4-di-cumylphenyl)-pentaerythritol diphosphite, bis(2,6-di-tert-butyl-4-methylphenyl)-pentaerythritol diphosphite, diisodecyloxypentaerythritol diphosphite, bis(2,4-di-tert-butyl-6-methylphenyl)pentaerythritol diphosphite, bis(2,4,6-tris(tert-butylphenyl)pentaerythritol diphosphite, tristearyl sorbitol diphosphite, bis(2,4-di-tert-butyl-6-methylphenyl)-methyl phosphite, bis(2,4-di-tert-butyl-6-methylphenyl)-ethyl phosphite, 2,2′,2″-nitrilo-[triethyltris(3,3′,5,5′-tetra-tert-butyl-1,1′-biph-enyl-2,2′-diyl)phosphite], 2-ethylhexyl(3,3′,5,5′-tetra-tert-butyl-1,1′-biphenyl-2,2′-diyl)phosphite, trinonylphenol phosphite, phenyl diisodecyl phosphite, diphenyl isodecyl phosphite, diphenyl isooctyl phosphate, tetraphenyl dipropyleneglycol diphosphite, poly(dipropyleneglycol) phenyl phosphite, alkyl (C