Compositions for producing aminoplast products and method for producing products from these compositions
申请人:Ratzsch Manfred
公开号:US20050250896A1
公开(公告)日:2005-11-10
Compositions for producing aminoplast products by means of melt processing consisting of: A) 95 to 99.9% by mass of solvent-free meltable polycondensates of melamine resins having molar masses ranging from 300 to 300 000; A) from 0.1 to 5% by mass of weak acids serving as thermoinducible curing agents consisting of: acidifiers of the blocked sulfonic acid type; aliphatic C
4
-C
18
carboxylic acids; aromatic C
7
-C
18
carboxylic acids; alkali salts or ammonium salts of phosphoric acid; C
1
-C
12
-alkyl esters or C
2
-C
8
-hydroxyalkyl esters of C
7
-C
14
aromatic carboxylic acids or of inorganic acids; salts of melamine or of guanamines having C
1-18
aliphatic carboxylic acids; anhydrides, half-esters or half-amides of C
4
-C
20
dicarboxylic acids; half-esters or half-amides of copolymers consisting of ethylenically unsaturated C
4
-C
20
dicarboxylic acid anhydrides and ethylenically unsaturated monomers of the C
2
-C
20
olefin type and/or C
8
-C
20
vinyl aromatic compounds; and/or salts of C
1
-C
12
-alkyl amines or alkanolamines having C
1
-C
18
aliphatic, C
7
-C
14
aromatic or alkylaromatic carboxylic acids and inorganic acids of the hydrochloric acid, sulphuric acid or phosphoric acid type, and; B) optionally up to 400% by mass of fillers and or reinforcing fibers, up to 30% by mass of additional reactive polymers of the ethylene copolymer, maleic anhyudride copolymer, modified maleic anhydride copolymer, poly(meth)acrylate, polyamide, polyester and/or polyurethane type, and up to 4% by mass, each time with regard to the polycondensates of melamine resins, of stabilizes, UV absorbers and/or auxiliary agents. These inventive compositions can be processed by means of melt processing into products such as panels, coated supporting materials, profiled pieces, pipes, injection-molded articles, fibrous products and laminates.
通过熔融加工生产氨基塑料产品的组合物,其成分包括A) 95%至 99.9%(质量百分比)的无溶剂可熔化三聚氰胺树脂缩聚物,其摩尔质量在 300 至 300 000 之间; A) 0.1%至 5%(质量百分比)的弱酸作为热诱导固化剂,包括:封烷磺酸型酸化剂;脂肪族 C
4
-C
18
羧酸;芳香族 C
7
-C
18
羧酸;磷酸的碱盐或铵盐;C
1
-C
12
-烷基酯或 C
2
-C
8
-的羟基烷基酯或 C
7
-C
14
芳香族羧酸或无机酸的酯类;三聚氰胺或具有 C
1-18
脂肪族羧酸的三聚氰胺盐或胍胺盐; C
4
-C
20
二羧酸的酐、半酯或半酰胺;由乙烯基不饱和 C
4
-C
20
二羧酸酐和乙烯基不饱和的 C
2
-C
20
烯烃类型的乙烯不饱和单体和/或 C
8
-C
20
乙烯基芳香族化合物;和/或 C
1
-C
12
-烷基胺或具有 C
1
-C
18
脂肪族、C
7
-C
14
芳香族或烷芳族羧酸和盐酸、硫酸或磷酸类无机酸,以及B) 填充剂和或增强纤维的质量百分比最高可达 400%,乙烯共聚物、马来酸酐共聚物、改性马来酸酐共聚物、聚(甲基)丙烯酸酯、聚酰胺、聚酯和/或聚氨酯类型的附加反应性聚合物的质量百分比最高可达 30%,稳定剂、紫外线吸收剂和/或辅助剂的质量百分比最高可达 4%(就三聚氰胺树脂的缩聚物而言)。这些发明组合物可以通过熔融加工制成板材、涂层支撑材料、异型件、管材、注塑制品、纤维制品和层压板等产品。