摘要:
A molding material comprises styrene/butadiene block copolymers obtainable by anionic polymerization and from 0.01 to 1% by weight, based on the polymer, of .alpha.-tocopherol.
摘要:
An adhesive containing an anionically polymerized copolymer based ona) from 10 to 90 wt % of vinyl aromatics,b) from 10 to 90 wt % of a conjugated diene, andc) from 0 to 30 wt % of other monomersand having a number-average molecular weight M.sub.n of from 2,000 to 250,000 and optionally having a content of homopolymer blocks having a gram-molecular weight which is greater than one twentieth of the number-average molecular weight, said content being less than 40 wt %, based on the copolymer.
摘要翻译:含有阴离子聚合的共聚物的粘合剂,其基于a)10至90重量%的乙烯基芳族化合物,b)10至90重量%的共轭二烯,和c)0至30重量%的其它单体并具有数 - 平均分子量+ E,ovs M + EE n为2,000至250,000,并且任选地具有大于数均分子量的二十分之一的克分子量的均聚物嵌段的含量,所述含量小于 40重量%,基于共聚物。
摘要:
Chlorine-free, non-drying copolymer of isobutene with C.sub.4 -C.sub.10 -dienes having isolated or conjugated double bonds and containing at least 60 mol % of terminal double bonds, and a process for their preparation.
摘要:
Novel polymers which are suitable as binders are obtainable by reacting(A) a base resin which has an average molecular weight M.sub.w of from 200 to 5,000 and contains on average from 1 to 3 epoxy or isocyanato groups as the reactive groups per moleculewith(B) a mixture of(B1) 5 to 50% by weight of polyisobutylene which is terminated with primary amino groups and has an average molecular weight M.sub.w of from 500 to 5,000 and(B2) 5-95% by weight of an amidoamine which carries primary amino groups and is obtainable by condensation of diprimary diamines of 2 to 20 carbon atoms with aliphatic C.sub.2 -C.sub.44 -dicarboxylic acids,the amounts being such that from 1 to 5 equivalents of primary amino groups of (B) are present per equivalent of reactive groups of (A).
摘要:
Hydrocarbons and polymers thereof, of the structure (I)R--C(CH.sub.3).sub.2 --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --CH.dbd.CH--CH.sub.2 --Cl (I)where R is a hydrocarbon radical, are prepared by reacting corresponding starting materials which contain chlorine bonded to tertiary carbon, of the structureR--C(CH.sub.3).sub.2 --CH.sub.2 --C(CH.sub.3).sub.2 --Cl (II)with from 1 to 10 moles of butadiene in the presence of a Friedel-Crafts catalyst in a solvent which is inert to the catalyst, and the hydrocarbons or polymers thereof can be reacted in a further step of the process with a compound from the group comprising ammonia, primary or secondary amine or polyamine, amino alcohol, amino ether, hydrazine or hydrazine which is substituted up to three times.