Binders for the preparation of polyurethane finishes
    1.
    发明授权
    Binders for the preparation of polyurethane finishes 失效
    用于制备聚氨酯涂料的粘合剂

    公开(公告)号:US4778854A

    公开(公告)日:1988-10-18

    申请号:US149105

    申请日:1988-01-27

    摘要: Binders contain(A) copolymers of(a) from 5 to 70% by weight of monoesters of acrylic acid and/or methacrylic with dihydric to hexahydric C.sub.2 -C.sub.18 -alcohols,(b) from 0.1 to 80% by weight of esters or amides of acrylic acid and/or methacrylic acid with monofunctional C.sub.2 -C.sub.20 -alcohols or -amines which have an open-chain and/or cyclic urea group in the ester or amide radical,(c) from 1 to 60% by weight of esters of acrylic acid and/or methacrylic acid with monofunctional C.sub.1 -C.sub.20 -alcohols and(d) from 0 to 60% by weight of other comonomers, and(B) polyisocyanates, some or all of whose isocyanate groups may be blocked with CH--, NH--- or OH--acidic blocking agents and which have an isocyanate functionality of from 2.5 to 6.These binders are employed for the preparation of polyurethane finishes, which are used to produce coatings.

    摘要翻译: 粘合剂含有(a)5-70重量%丙烯酸和/或甲基丙烯酸与二元至六元C 2​​ -C 18醇的单酯的共聚物,(b)0.1-80重量%的酯或酰胺 的丙烯酸和/或甲基丙烯酸与在酯或酰胺基中具有开链和/或环状脲基团的单官能C 2 -C 20醇或胺,(c)1至60重量%的 丙烯酸和/或甲基丙烯酸与单官能C 1 -C 20醇和(d)0至60重量%的其它共聚单体,和(B)多异氰酸酯,其一部分或全部异氰酸酯基可被CH - ,NH - 或OH-酸性封闭剂,其异氰酸酯官能度为2.5至6.这些粘合剂用于制备用于生产涂料的聚氨酯表面处理剂。

    Preparation of low-viscosity, isocyanurate and urethane group-containing
polyisocyanate mixtures
    2.
    发明授权
    Preparation of low-viscosity, isocyanurate and urethane group-containing polyisocyanate mixtures 失效
    制备低粘度,异氰脲酸酯和含氨基甲酸酯基团的多异氰酸酯混合物

    公开(公告)号:US5369207A

    公开(公告)日:1994-11-29

    申请号:US90419

    申请日:1993-07-12

    摘要: A process for the preparation of isocyanurate and urethane group-containing and, if desired, uretdiode and allophanate group-containing polyisocyanate mixtures by partially cyclizing organic, preferably (cyclo)aliphatic diisocyanates, in the presence of trimerization catalysts, deactivating these catalysts, reacting the partially trimerized, isocyanurate and, if desired, uretdiode group-containing polyisocyanate mixture with 0.5 to 10 mol % of at least one aliphatic or cycloaliphatic alcohol and/or polyoxyalkylene alcohol, and separating off the monomeric diisocyanates.

    摘要翻译: 通过在三聚催化剂的存在下部分环化有机(优选(环))脂族二异氰酸酯,通过使这些催化剂失活来使得制备含异氰脲酸酯和氨基甲酸酯基团的方法,并且如果需要,含有脲基和脲基甲酸酯基的多异氰酸酯混合物, 部分三聚,异氰脲酸酯,并且如果需要,含有脲基团的多异氰酸酯混合物与0.5至10mol%的至少一种脂族或脂环族醇和/或聚氧化烯醇,并分离出单体二异氰酸酯。