摘要:
The process for the manufacture of an auto-oxidatively cross-linking hybrid polymer, in particular an aqueous hybrid polymer dispersion, comprises the step of reacting in a mini-emulsion process one or more ethylenically unsaturated monomers to form an addition polymer in the presence of a modified auto-oxidatively crosslinkable (AOC) polymer which has been modified with terminal unsaturated groups of the formula —C(R1)═CH2 wherein R1 is hydrogen, alkyl or aryl and wherein the AOC polymer is a hydrophobic polymer having an acid number between 5 to 30. The resulting aqueous hybrid polymer dispersion can be used for the manufacture of coating compositions, ink compositions or adhesives and coating compositions comprising the hybrid polymer dispersion as a binder.
摘要:
An aqueous primary dispersion curable with actinic radiation and comprising liquid and/or solid, emulsified and/or dispersed polymer particles with a z-average diameter ≦500 nm, preparable by polyaddition in a microemulsion and/or miniemulsion of at least (A) at least one polyisocyanate, (B) at least one polyol and (C) at least one compound containing at least one isocyanate-reactive functional group and at least one reactive functional group containing at least one bond which can be activated with actinic radiation; process for preparing it, and its use.
摘要:
An activatable (e.g., heat expandable) material and articles incorporating the same is disclosed. The material includes an epoxy resin; an epoxy/elastomer hybrid or reaction product; a blowing agent; a curing agent; and optionally, a filler. In preferred embodiments, the material includes aramid fiber, nanoclay or both.
摘要:
Relatively low molecular weight olefin/CO polymers are graft copolymerized. The graft copolymers provide the basis for waterborne adhesives that are particularly useful for making wood composites.
摘要:
An adhesive bond is produced using an adhesive composition which comprises a silane-grafted, largely amorphous poly-.alpha.-olefin prepared by grafting onto said largely amorphous poly-.alpha.-olefin a silane compound having from 1-3 alkoxy groups attached directly to the silicon and at least one olefinic double bond containing moiety, and then crosslinking the adhesive composition by means of water.
摘要:
A composition useful for adhering polysulfide sealant to silicone sealant or to silicone sealant contaminated surfaces is obtained by mixing 1 part by weight of alkoxy functional, titanate catalyzed silicone sealant with from 0.1 to 40 parts by weight of polysulfide sealant.
摘要:
A resin composition for sealing liquid crystal cells comprising as principal ingredients epoxy resin containing a polysulfide modified epoxy resin, hydrazide compounds and fillers.The said epoxy resin contains a polysulfide modified epoxy resin expressed by the general formula (1) in an amount of 20 to 100% by weight in the entire epoxy resin and the average molecular weight of the entire epoxy resin is between 300 and 3000. Formula (1) is defined as follows: ##STR1## where each of R.sup.1 and R.sup.3 represents at least one organic group selected from a group consisting of bisphenol structures, aliphatic oxyether structures and aliphatic thioether structures and R.sup.2 represents a polysulfide structure expressed by --(C.sub.2 H.sub.4 OCH.sub.2 OC.sub.2 H.sub.4 S.sub.m).sub.n --, wherein m represents the number of sulfur atoms contained in a polysulfide structure, which is 1 or 2, and n represents the average number of polysulfide structures contained in the above formula, which is between 1 and 50.A film-made liquid crystal cell made by using the resin composition is excellent in adhesion, flexibility, electric properties and has high reliability.
摘要翻译:一种用于密封液晶单元的树脂组合物,其包含含有多硫化物改性环氧树脂,酰肼化合物和填料的作为主要成分的环氧树脂。 所述环氧树脂在整个环氧树脂中含有由通式(1)表示的多硫化物改性环氧树脂,其量为20〜100重量%,整个环氧树脂的平均分子量为300-3000。式 (1)定义如下:其中R1和R3各自表示选自双酚结构,脂族氧醚结构和脂族硫醚结构中的至少一种有机基团,R 2表示由下式表示的多硫结构: - (C 2 H 4 OCH 2 OC 2 H 4 Sm)n - ,其中m表示多硫化物结构中所含的硫原子数,其为1或2,n表示上式中所含的多硫化物结构的平均数,介于1和50之间。 通过使用该树脂组合物制成的薄膜液晶单元具有优异的粘合性,柔韧性,电性能,并具有高可靠性。
摘要:
Adhesives comprising carboxylic acid- or anhydride-grafted elastomeric polyester copolymers, and composite structures made therefrom, are disclosed.
摘要:
A binder for textile structures which are graft copolymer latices in which the following are incroporated in the graft copolymer:(1) as graft substrate, from 40 to 70% by weight, of a polyorganosiloxane end blocked with hydroxyl groups as indicated in the following general formula ##STR1## wherein R.sup.1 denotes alkyl groups having 1 to 24 carbon atoms or aryl groups having 6 to 10 carbon atoms,R.sup.2 denotes divalent alkylene groups having 1 to 8 carbon atoms,R.sup.3 denotes alkyl groups having 1 to 24 carbon atoms, aryl groups, alkoxy groups having 1 to 6 carbon atoms or a hydroxyl group,R.sup.2 and R.sup.3 together with the silicon atom may form a 5 membered or 6 membered ring containing a trivalent unbranched or branched alkyl group having to 8 carbon atoms, anda stands for 80 to 99 mol %,b stands for 1 to 20 mol %, anda+b=100 mol %and the viscosity of the polymer determined at 25.degree. C. is from 100 to 100,000 mPa.s,(2) as grafted vinyl polymer, from 30 to 60% by weight, of styrene and/or .alpha.-methyl styrene, (meth)acrylic acid ester, (meth)-acrylonitrile or mixtures of these monomers and optionally one or more vinyl monomers of the general formula ##STR2## wherein R' denotes a hydrogen atom or a methyl group,R" denotes a alkyl group having 1 to 18 carbon atoms,Y denotes a hydrogen atom or the group OH or OR andZ denotes OH or ##STR3##
摘要翻译:用于织物结构的粘合剂是接枝共聚物胶乳,其中以下在接枝共聚物中被覆盖:(1)作为接枝基材,40至70重量%的用羟基封端的聚有机硅氧烷末端,如以下通式所示 式(*化学结构*)其中R1表示具有1至24个碳原子的烷基或具有6至10个碳原子的芳基,R 2表示具有1至8个碳原子的二价亚烷基,R 3表示具有1至24个碳原子的烷基 芳基,碳原子数为1〜6的烷氧基或羟基,R2和R3与硅原子一起形成含有8个碳原子的三价未支链或支链烷基的5元或6元环, 表示80〜99摩尔%,b表示1〜20摩尔%,a + b = 100摩尔%,在25℃下测定的聚合物的粘度为100〜100,000mPa.s,(2)为 接枝乙烯基聚合物,重量比为30至60% 芘和/或(α) - 甲基苯乙烯,(甲基)丙烯酸酯,(甲基)丙烯腈或这些单体的混合物和任选的一种或多种通式(* CHEMICAL STRUCTURE *)的乙烯基单体,其中R'表示 氢原子或甲基,R“表示碳原子数1〜18的烷基,Y表示氢原子或基团OH或OR,Z表示OH或(*化学结构*)
摘要:
Graft polymers in which carboxylic acid vinyl esters and if appropriate other ethylenically unsaturated monomers are grafted polymerically onto polyurethane graft bases by means of grafting polymerization initiated by free radicals, and hydrolysis products of the graft polymers can be obtained by grafting carboxylic acid vinyl esters with 3 to 20 carbon atoms and if appropriate other ethylenically unsaturated polymerizable monomers, which are copolymerizable if appropriate, in amounts of 10 to 99% by weight, based on the graft polymer, onto a polyurethane graft base by grafting polymerization initiated by free radicals, and if appropriate subsequently partly or completely hydrolyzing the vinyl ester units and if appropriate other hydrolyzable monomer units in the grafted-on polymer radicals of the graft polymers by hydrolysis and/or alcoholysis. Preferred vinyl esters to be grafted on are vinyl acetate and/or vinyl propionate and if appropriate vinyl versatate. The grafting polymerization is carried out in solution or in bulk and can also be carried out in emulsion or suspension.