SULFONATED AND NON-SULFONATED, THIOL AND HYDROXY FUNCTIONAL POLYURETHANES AND GRAFT COPOLYMERS MADE THEREWITH

• Main Authors: ANDERSON, JEFFREY T, CARLSON, JAMES G, KUMAR, RAMESH C
• Format: Patent
• Language: English; Korean
• Published: 15.05.1999
• Edition: 6
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

본 발명은 하기(i) 내지(iv)로 구성되는 설폰화된, 티올 및 히드록시 작용성 폴리우레탄 중합체에 관한 것이다: (i) 폴리우레탄 주쇄; (ii)폴리우레탄 주쇄에 현수된 적어도 하나의 SOM기(이 폴리우레탄 주쇄는 약 2,000 내지 약 100,000의 SOM 당량을 가지며, M 은 H, NR4(식중, R은 H 또는 알킬기이다). Li, Na, K, 및 이들의 혼합물이다); (iii) 폴리우레탄 주쇄에[ 현수된 적어도 2개의 가교 결합성 히드록시기(이 폴리우레탄 주쇄는 약 500 내지 약 50,000의 히드록시당량을 갖는다); 및 (iv) 폴리우레탄 주쇄에 현수된 적어도 하나의 SH 기. 또한 본 발명은 자기기록매체의 결합제로서 특히 유용한 비닐/폴리우레탄 공중합체 및 그것의 제조방법에 관한 것이다. 본 발 은 또한 비설폰화된 리올 및 히드록시 작용성 폴리우레탄 그래프트 공중합체 및 그것으로 제조된 분산액에 관한것이다. The invention relates to a sulfonated, thiol, and hydroxy-functional polyurethane polymer which comprises: (i) a polyurethane backbone; (ii) at least one SO3M group pendant from the polyurethane backbone, wherein the polyurethane backbone has an SO3M equivalent weight of from about 2,000 to about 100,000, and wherein M is selected from the group consisting of H+, NR4+ wherein R can be H+ or an alkyl group, Li+, Na+, K+, and mixtures thereof; (iii) at least two crosslinkable hydroxy groups pendant from the polyurethane backbone, wherein the polyurethane backbone has a hydroxy equivalent weight of from about 500 to about 50,000; and (iv) at least one -SH group pendant from the polyurethane backbone. The invention also relates to vinyl/polyurethane copolymers made therewith which are particularly useful as binders in magnetic recording media and a method of making the copolymers. The invention also relates to certain nonsulfonated thiol and hydroxy functional polyurethane graft copolymers and dispersions made therewith.