Powder lacquer and its use for coating heat-resistant substrates
    6.
    发明授权
    Powder lacquer and its use for coating heat-resistant substrates 失效
    粉末漆及其用于涂覆耐热基材的用途

    公开(公告)号:US4900800A

    公开(公告)日:1990-02-13

    申请号:US73927

    申请日:1987-07-15

    摘要: 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.

    摘要翻译: 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。

    Process for the production of sheet structures
    7.
    发明授权
    Process for the production of sheet structures 失效
    生产薄片结构的方法

    公开(公告)号:US4707386A

    公开(公告)日:1987-11-17

    申请号:US944782

    申请日:1986-12-22

    摘要: 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.

    摘要翻译: 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。

    Polyhydroxyl compounds containing guanidine groups
    9.
    发明授权
    Polyhydroxyl compounds containing guanidine groups 失效
    含有胍基的多羟基化合物

    公开(公告)号:US4192925A

    公开(公告)日:1980-03-11

    申请号:US30491

    申请日:1979-04-16

    摘要: This invention relates to new polyols modified by guanidine groups, to a process for the preparation thereof and to the use thereof as starting component for the preparation of preferably foamed polyurethane plastics. The process involves (A) reacting diisocyanato-carbodiimides corresponding to the following general formula:OCN--(R.sup.2 -N=C=N).sub.m R.sup.2 --NCOat a temperature of from about 25.degree. to 130.degree. C., optionally in the presence of an inert solvent, with polyhydroxyl compounds corresponding to the following general formula:A--OH).sub.nin an OH/NCO-ratio of from 1.2:1 to 30:1 to form a polyhydroxyl compound containing carbodiimide groups and (B) completely or partly reacting, at a temperature of from 0.degree. to 150.degree. C., the remaining carbodiimide groups remaining in the production of Step (A), optionally in the presence of an inert solvent, with an amine, amide or hydrazide corresponding to the following general formula:R.sup.3 --NR.sup.1 H).sub.sto form guanidine groups, and (C) distilling off the inert solvent, if used; whereinm represents an integer of from 1 to 10; andR.sup.1 represents a C.sub.1 -C.sub.18 aliphatic, C.sub.4 -C.sub.15 cycloaliphatic or C.sub.6 -C.sub.15 aromatic or araliphatic radical which may optionally contain a double bond and/or be branched and which may optionally be substituted by a group selected from the group of hydroxyl or trifluoromethyl groups, fluorine, chlorine, bromine or iodine;R.sup.2 represents a divalent aliphatic, cycloaliphatic, aromatic or araliphatic radical having from 4 to 25 carbon atoms obtained by removing the isocyanate groups from a diisocyanate;A represents an n-valent radical of the type obtained by removing the hydroxyl groups from a polyhydroxyl compound having a molecular weight of from 62 to 6000;n represents an integer of from 2 to 8;s represents an integer of from 1 to 3.

    摘要翻译: 本发明涉及通过胍基改性的新的多元醇,其制备方法及其作为制备优选泡沫聚氨酯塑料的起始组分的用途。 该方法包括(A)在约25℃至130℃的温度下,对应于下列通式的二异氰酸酯 - 碳二亚胺:OCN-(R 2 -N = C = N)m R 2 -NCO 的惰性溶剂,其中OH / NCO比为1.2:1至30:1的对应于以下通式的多羟基化合物:A-OH)n以形成含有碳二亚胺基团的多羟基化合物,和(B)完全或 部分地在0℃至150℃的温度下反应,任选在惰性溶剂存在下,剩余的步骤(A)制备中剩余的碳二亚胺基团与胺,酰胺或酰肼对应于下列物质 通式:R3-NR1H)形成胍基,(C)蒸出惰性溶剂(如果使用); 其中m表示1至10的整数; 并且R 1表示C 1 -C 18脂族,C 4 -C 15脂环族或C 6 -C 15芳族或芳脂族基团,其可以任选地含有双键和/或被支化,并且可任选地被选自羟基或三氟甲基的基团取代 基团,氟,氯,溴或碘; R2表示通过从二异氰酸酯中除去异氰酸酯基而获得的具有4至25个碳原子的二价脂族,脂环族,芳族或芳脂族基团; A表示通过从分子量为62〜6000的多羟基化合物除去羟基得到的n价基团; n表示2〜8的整数, s表示1〜3的整数。