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    • 5. 发明授权
    • Self-bonding enamel solution for heat-resistant coatings
    • 自粘式ENAMEL解决方案用于耐热涂料
    • US5059660A
    • 1991-10-22
    • US521030
    • 1990-05-09
    • Peter HoesselHans SchuppKlaus LienertHelmut Lehmann
    • Peter HoesselHans SchuppKlaus LienertHelmut Lehmann
    • C08G18/75C08G18/34C08G18/60C08G18/72C08G18/80C09D5/25C09D175/00C09D175/04H01B3/30
    • H01B3/302C08G18/341C08G18/603C08G18/724C08G18/8074H01B3/305
    • Self-bonding enamel solutions containA) from 5 to 80% by weight of a copolyamide composed of units which are derived fromA.sub.1) organic dicarboxylic acids ##STR1## where R.sup.1 is an aliphatic radical of 1 to 20 carbon atoms or an aromatic radical of 5 to 25 carbon atoms,andA.sub.2) a mixture of diisocyanates, consisting ofa.sub.21) from 20 to 95 mol % of a diisocyanate of the general formulaOCN--R.sup.2 --NCO where R.sup.2 is an aromatic radical of 5 to 25 carbon atoms,a.sub.22) from 5 to 70 mol % of a diisocyanate of the general formulaOCN--R.sup.3 --NCO where R.sup.3 is ##STR2## or a linear aliphatic radical of 3 to 30 carbon atoms which is substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl groups and R.sup.4 and R.sup.5 independently of one another are each C.sub.1 -C.sub.4 -alkyl or hydrogen, anda.sub.23) from 0 to 20 mol % of a diisocyanate of the general formulaOCN--(CH.sub.2).sub.y --NCO where y is an integer of from 1 to 20, andB) from
    • 自粘搪瓷溶液包含A)5至80重量%的由衍生自A1)有机二羧酸的单体组成的共聚酰胺,其中R 1是1至20个碳原子的脂族基团或芳族基团的芳族基团 5〜25个碳原子,A2)二异氰酸酯的混合物,由以下组分组成:a)20〜95摩尔%的通式为OCN-R2-NCO的二异氰酸酯,其中R 2为5〜25个碳原子的芳族基团,a22 )5〜70摩尔%的通式为OCN-R3-NCO的二异氰酸酯,其中R 3为3或3个碳原子的直链脂族基团,其被1至3个C 1 -C 4 - 烷基取代, R 4和R 5彼此独立地各自为C 1 -C 4烷基或氢,和a 23)0至20摩尔%的通式为OCN-(CH 2)y -NCO的二异氰酸酯,其中y为1至 20和B)在有机溶剂或溶剂混合物中的<0.5至30重量%的封端二异氰酸酯或多异氰酸酯。