摘要:
Materials which are cross-linkable by ultraviolet radiation under atmospheric oxygen and are based on (meth)acrylate copolymers having a K value of from 10 to 100 are obtained by free radical polymerization, in the presence or absence of a solvent, ofa) from 5% to 97.4% by weight of isoamyl acrylate and/or isoamyl methacrylate,b) from 9% to 89.9% by weight of (methacrylates whose homopolymers have a glass transition temperature below -30.degree. C.,c) from 2.5% to 30% by weight of .alpha.,.beta.-monoolefinically unsaturated compounds whose homopolymers have a glass transition temperature above -30.degree. C.,d) from 0% to 10% by weight of monoolefinically unsaturated acids and/or their anhydrides ande) from 0% to 20% by weight of further olefinically unsaturated monomers having one or more of the following functional groups: hydroxyl, amide, epoxide, ether, ester, urethane, urea, primary, secondary and tertiary amine and ether groups, andf) from 0.1% to 5% by weight of a copolymerizable benzophenone derivative or acetophenone derivative,the sum of the percentages by weight X (=a+b+c+d+f) being 100 in each case.
摘要翻译:通过在大气氧下通过紫外线辐射可交联并且基于具有10至100的K值的(甲基)丙烯酸酯共聚物的材料通过自由基聚合在溶剂存在或不存在下通过a) 5%至97.4%的丙烯酸异戊酯和/或甲基丙烯酸异戊酯,b)9%至89.9%(重量)(甲基丙烯酸酯的均聚物的玻璃化转变温度低于-30℃,c)为2.5%至30% 重量%的α,β-单烯烃不饱和化合物,其均聚物具有高于-30℃的玻璃化转变温度,d)0重量%至10重量%的单烯属不饱和酸和/或其酸酐,和e)0% 至20重量%的具有一个或多个以下官能团的其它烯属不饱和单体:羟基,酰胺,环氧化物,醚,酯,氨基甲酸酯,脲,伯,仲和叔胺和醚基,以及f)0.1% 至5重量%的可共聚的b 烯苯酯衍生物或苯乙酮衍生物,每种情况下,重量百分比X(= a + b + c + d + f)之和为100。
摘要:
Aqueous (meth)acrylate copolymer dispersions can be prepared by polymerization of the monomers in two stages having different monomer compositions and with the concomitant use of crosslinking monomers in aqueous emulsion at the usual temperatures in the presence of the conventional emulsifiers and polymerization initiators, from 40 to 99.5% by weight of the total monomers being polymerized in the first stage and from 60 to 0.5% by weight of the total monomers being polymerized in the second stage, by a process in which from 0.5 to 10% by weight, based on the total monomers, of (meth)-acrylamidoglycollic acid and /or its methyl ester and/or its methyl ether are polymerized in the second stage and from 0 to 1.8% by weight, based on the total monomers, of the amidoglycollic acid compounds are polymerized in the first stage, and the resulting copolymer dispersions are used as binders for sheet-like textile fibrous structures.
摘要:
An aqueous synthetic resin dispersion consisting of (A) from 35 to 60% by weight of a synthetic resin prepared by free radical solution polymerization of a monomer mixture A1 and monomer mixture A2, wherein mixture A1 is (a) from 1.5 to 15% by weight of at least one C.sub.3-5 unsaturated monocarboxylic acid, maleic or itaconic acid or anhydride and half-esters of maleic acid or itaconic acid with a C.sub.1-8 ankanol or with glycol monoethers, (b) from 65 to 98.5% by weight of at least one C.sub.1-10 alkyl (meth)acrylate, and optionally at least one C.sub.11-20 alkyl (meth)acrylate (III), vinyl aromatic monomer (IV), mercaptosilane (V), and copolymerizable monomer (VI), and mixture A2 is (a) from 60 to 100% by weight of at least one monomer II, and optionally at least one monomer III, IV or VI and compound (V), with the proviso that more than 65% by weight of the sum total of A1 and A2 is accounted for by monomers II and an amount of compound V which differs from ) and is incorporated in the copolymer;(B) from 0.05 to 5% by weight of at least one epoxy group containing silane; and(C) at least one of ammonia and an organic amine; with the remainder being water and wherein the dispersion contains from 0 to 5% organic solvent.
摘要:
Aqueous dispersions of copolymers having a glass transition temperature of not more than -45.degree. C. and a K value greater than 80 consist of not less than 80% by weight of acrylates of alkanols of 8 to 12 carbon atoms, from 1 to 4% by weight of .alpha.,.beta.- monoolefinically unsaturated carboxylic acids and/or their amide derivatives and from 0.1 to 3% by weight of .alpha.-methylstyrene, and are used for the production of self-adhesive structures having good tack at as low as -40.degree. C.
摘要翻译:玻璃化转变温度不高于-45℃,K值大于80的共聚物的水分散体由不低于80重量%的8至12个碳原子的链烷醇的丙烯酸酯,1至4重量% 的α,β-单烯属不饱和羧酸和/或其酰胺衍生物和0.1-3重量%的α-甲基苯乙烯,并且用于生产具有低至-40的良好粘性的自粘结构 DEG C.
摘要:
An aqueous dispersion containing a copolymer comprisinga) 60-95% by weight of a C.sub.2 -C.sub.10 -alkyl (meth)acrylateb) 5-40% by weight of methyl acrylatec) 0-30% by weight of methyl methacrylated) 0-30% by weight of a C.sub.8 -C.sub.12 -vinylaromatic compounde) 0-10% by weight of a C.sub.1 -C.sub.10 -hydroxyalkyl (meth)acrylatef) 0-5% by weight of an ethylenically unsaturated C.sub.3 -C.sub.5 -carboxylic acid or dicarboxylic acidg) 0-20% by weight of further ethylenically unsaturated compounds,vinyl acetate and chlorine-containing compounds being excluded, is used as an adhesive.
摘要:
Aqueous dispersions of copolymers of(a) from 70 to 85% by weight of nontertiary butyl (meth)acrylates,(b) from 8 to 27.2% by weight of (meth)acrylates (A) whose homopolymers have a glass transition temperature greater than that of the polybutyl (meth)acrylate up to 0.degree. C. and (meth)acrylates (B) whose homopolymers have a glass transition temperature below that of the polybutyl (meth)acrylate, the weight ratio of the (meth)acrylates (A) to the (meth)acrylates (B) being from 3:1 to 1:3,(c) from 2 to 15% by weight of methyl methacrylate, styrene and/or acrylonitrile and(d) 0.8 to 5% by weight of monoolefinically unsaturated mono- and/or dicarboxylic acids of 3 to 5 carbon atoms and/or their amides which are unsubstituted or substituted at the nitrogen atoms by alkyl and/or alkylol radicals of 1 to 4 carbon atoms and/or hydroxyalkyl (meth)acrylates where the alkyl groups are of 2 to 5 carbon atoms,are used for coating sheet-like substrates.
摘要:
Aqueous polymer dispersions which have a long shelf life are obtainable by dispersing a mixture of from 15 to 70% by weight of a copolymer (A) of(I) from 1.5 to 15% by weight of copolymerizable compounds of 3 to 10 carbon atoms which contain a carboxyl or carboxylic anhydride group,(II) from 65 to 98.5% by weight of C.sub.1 -C.sub.20 -alkyl acrylates or methacrylates,(III) from 0 to 20% by weight of vinylaromatics,(IV) from 0 to 20% by weight of copolymerizable carbonyl compounds and(V) from 0 to 10% by weight of further copolymerizable organic compounds not stated under (I) to (IV), and from 30to 85% by weight of a copolymer (B) of from 60 to 100% by weight of the monomers (II) and from 0 to 40% by weight of the monomers (III) to (V), with the proviso that the copolymers (A) and (B) together contain, as components, more than 65% by weight of alkyl (meth)acrylates (II) whose homopolymers have glass transition temperatures of less than 0.degree. C., and that one or more of the copolymers (A) and (B) contain the monomers (IV) as components, in water with the addition of ammonia and a polyhydrazide (C), and the said dispersions are used as pressure sensitive adhesives and as adhesives for laminated films.