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    • 8. 发明授权
    • Powder lacquer and its use for coating heat-resistant substrates
    • 粉末漆及其用于涂覆耐热基材的用途
    • US4900800A
    • 1990-02-13
    • US73927
    • 1987-07-15
    • Reinhard HalpaapJosef PedainHans-Joachim KreuderGerhard KleinWalter SchaferDieter Arlt
    • Reinhard HalpaapJosef PedainHans-Joachim KreuderGerhard KleinWalter SchaferDieter Arlt
    • C08G18/72C08G18/02C08G18/16C08G18/73C08G18/79C08G18/80C09D5/03C09D5/46C09D175/00C09D175/04
    • C08G18/8058C08G18/791C08G18/8009C08G2150/20
    • The present invention relates to a powder lacquer containing a mixture of(A) a polyisocyanate component in power form which is solid below about 40.degree. C. and liquid above about 150.degree. C. and(B) a organic polyhydroxyl component in powder form which is solid below about 40.degree. C. and liquid above about 150.degree. C.,components (A) and (B) being present in quantities corresponding to an equivalent ratio of isocyanate groups to hydroxyl groups of about 0.6:1 to 1.2:1, characterized in that component (A) is based on a polyisocyanate or polyisocyanate mixture which(a) does not contain any blocking agents for isocyanate groups,(b) has a content of free isocyanate groups (expressed as NCO) attached to tertiary, aliphatic or cycloaliphatic carbon atoms of about 8 to 24% by weight and an average NCO functionality of at least 2.1,(c) has a urethane group content (expressed as --NH--CO--O--) of about 3 to 30% by weight and(d) has an isocyanurate group content (expressed as C.sub.3 N.sub.3 O.sub.3) of 0 to about 30% by weight.The present invention also relates to the use of this powder lacquer for the production of coatings on heat-resistant substrates by methods known in powder lacquer technology.
    • 本发明涉及一种粉末漆,其含有(A)固体低于约40℃的功率形式的多异氰酸酯组分和高于约150℃的液体的混合物和(B)粉末形式的有机多羟基组分, 固体低于约40℃,液体高于约150℃,组分(A)和(B)的存在量相当于异氰酸酯基与羟基的当量比为约0.6:1至1.2:1, 其特征在于组分(A)是基于多异氰酸酯或多异氰酸酯混合物,其中(a)不含任何异氰酸酯基团的封端剂,(b)具有连接到叔脂族或叔碳原子上的游离异氰酸酯基团(表示为NCO) 约8至24重量%的脂环族碳原子和平均NCO官能度至少为2.1,(c)具有约3至30重量%的氨基甲酸酯基含量(表示为-NH-CO-O-)和( d)具有0至约的异氰脲酸酯基含量(表示为C 3 N 3 O 3) 30重量%。 本发明还涉及这种粉末漆用于通过粉末漆技术中已知的方法在耐热基材上生产涂层的用途。
    • 9. 发明授权
    • Process for the production of sheet structures
    • 生产薄片结构的方法
    • US4707386A
    • 1987-11-17
    • US944782
    • 1986-12-22
    • Walter SchaferHanns P. MullerRolf KuchenmeisterArmin Sickert
    • Walter SchaferHanns P. MullerRolf KuchenmeisterArmin Sickert
    • C09D175/04B05D7/26C08G59/40C08L63/00C09D163/00C09D175/00C09J175/00B05D3/02
    • C08L63/00C08G59/4014C09D175/00C09J175/00
    • The present invention relates to a process for the production of water- and solvent-resistant coatings by coating substrates with an aqueous coating composition containing as binder a mixture of(1) reaction products, containing anionic structural units of the formula ##STR1## in a quantity of 5 to 1200 milliequivalents per 100 g of said reaction products, obtained by reacting organic polyisocyanates with salts of cyanamide and bases selected from ammonia, volatile primary and secondary amines having a pKb-value of at least 3.1 and any volatile aliphatic tertiary amines and(2) polyepoxides having at least two epoxide groups per molecule and an epoxide equivalent of at least about 80, said polyepoxides being used in a quantity corresponding to an equivalent ratio of epoxide groups to anionic structural units of about 0.1:1 to 3:1, andcross-linking the binder at a temperature of about 5 to 200.degree. C. The present invention is also directed to the aqueous coating composition based on components 1 and 2.
    • 本发明涉及一种通过用水性涂料组合物涂覆基材来生产耐水和耐溶剂的涂料的方法,该水性涂料组合物含有(1)含有下式的阴离子结构单元的反应产物的混合物: 通过使有机多异氰酸酯与氰胺和选自氨的碱,pKb值至少为3.1的挥发性伯和仲胺反应获得的每100克所述反应产物的量为5至1200毫当量,以及任何挥发性脂族叔胺, (2)每分子具有至少两个环氧基团和至少约80个环氧当量的聚环氧化物,所述聚环氧化物的使用量相当于环氧基团与阴离子结构单元的当量比为约0.1:1至3:1 并在约5至200℃的温度下交联粘合剂。本发明还涉及基于化合物的水性涂料组合物 1号和2号。