摘要:
강산리그닌, 폴리올 및 이소시아네이트를 포함하는 조성물의 중합 생성물인 경질 폴리우레탄 폼 및 이를 제조하는 방법에 관한 것이다. 바이오매스 유래되는 재료인 리그닌을 사용하여 추가적인 화학적 개질 없이도 폴리올의 일부를 대체할 수 있고, 우수한 물성을 지닌 경질 폴리우레탄 폼을 제조할 수 있다.
摘要:
Gegenstand der vorliegenden Erfindung ist die Verwendung stickstoffhaltiger Verbindungen nach der Formel (I) und/oder entsprechender quaternisierter und/oder protonierter Verbindungen zur Herstellung von Polyurethanen, Zusammensetzungen, die diese Verbindungen enthalten sowie Polyurethansysteme, insbesondere Polyurethanschaumstoffe, die unter Verwendung der Verbindungen erhalten wurden.
摘要:
A method of preparing a polymer is provided comprising preparing a Baylis-Hillman adduct by reacting an activated alkene with a carbon electrophile; and polymerizing the Baylis-Hillman adduct. The Baylis-Hillman reaction provides an efficient platform for the synthesis of densely functionalized monomers, from which polymers with multiple functional groups can be readily synthesized. It has been discovered that that Baylis-Hillman adducts are versatile monomers for both controlled radical and step-growth polymerizations.
摘要:
Polyester polyols containing adducts formed from Diels-Alder and Ene reactions are disclosed. Processes for making the polyester polyols and uses of the polyester polyols as polyurethane coatings, adhesives, sealants, elastomers, and foams are also disclosed. In some embodiments, the polyester polyols contain biorenewable adducts based on maleic anhydride and farnesene and have particular application in making rigid and flexible polyurethane or polyisocyanurate foams.
摘要:
The invention relates to catalyst compounds for water-based two-component coating compositions comprising: I) at least one organo-metal catalyst for the curing reaction between isocyanate groups and functional groups reactive towards isocyanate groups and II) at least one oligomeric or polymeric binder compound having a glass transition temperature Tg of >=20° C, measured by DSC (differential scanning calorimetry) at a heating rate of 10 K/min, wherein the glass transition temperature Tg of binder compound II) is above the temperature at which a water-based two-component coating composition comprising the catalyst compound is applied, preferably is at least 10° C, more preferred at least 20° C above the temperature at which said two-component coating composition is applied.
摘要:
The invention relates to catalyst compounds for water-based two-component coating compositions comprising: I) at least one organo-metal catalyst for the curing reaction between isocyanate groups and functional groups reactive towards isocyanate groups and II) at least one oligomeric or polymeric binder compound having a glass transition temperature Tg of ≥20° C, measured by DSC (differential scanning calorimetry) at a heating rate of 10 K/min, wherein the glass transition temperature Tg of binder compound II) is above the temperature at which a water-based two-component coating composition comprising the catalyst compound is applied, preferably is at least 10° C, more preferred at least 20° C above the temperature at which said two-component coating composition is applied.