Hot melt adhesive containing a silane grafted hydrogenated block polymer

    公开(公告)号:US4783504A

    公开(公告)日:1988-11-08

    申请号:US835090

    申请日:1986-02-28

    摘要: A sealant composition comprising:(a) 100 parts by weight of a silane functionalized polymer component which is prepared by reacting enough silane of the general formula R R'.sub.n SiY.sub.3-n (where n equals 0, 1 or 2 and where R is a non-hydrolyzable organic group which is capable of grafting onto the polymer, R' is a non-hydrolyzable organic group incapable of grafting onto the polymer and Y is a hydrolyzable organic group) with a polymer component to thereby functionalize the polymer component and provide a resultant sealant composition with adhesion which is resistant to deterioration in the presence of water;said polymer component comprising an A'B' block copolymer, a multiblock copolymer having at least two end blocks A and at least one midblock B, or mixtures of an A'B' block copolymer and the multiblock copolymer wherein:the A' and A blocks comprise monoalkenyl arene blocks and the B' and B blocks comprise substantially completely hydrogenated conjugated diene polymer blocks, and the average molecular weight of the A and A' blocks is greater than the minimum molecular weight needed to obtain microphase separation and domain formation of the A and A' blocks, and is less than the maximum molecular weight which would render the polymer incapable of being melt processed;the multiblock copolymer comprises a monoalkenyl arene content no more than a maximum weight percent needed to retain a modulus suitable as a sealant for the resultant composition and no less than a minimum weight percent needed to obtain the desired phase separation and the desired minimum cohesive strength for the resultant composition;(b) an amount of a midblock compatible component wherein said midblock compatible component is at a concentration to maintain the resultant composition in a plyable condition at room temperture and to maintain the glass transition temperature of the resultant composition below 10.degree. C.

    GEL COMPOSITIONS
    3.
    发明申请
    GEL COMPOSITIONS 有权
    凝胶组合物

    公开(公告)号:US20090186958A1

    公开(公告)日:2009-07-23

    申请号:US12353438

    申请日:2009-01-14

    IPC分类号: C08K5/10 C08K5/11 C08F2/46

    摘要: Disclosed are four gel compositions that have improved properties over the prior art. These gels include elastosols, solid rubbery gels, UV cured gels and chemically cured gels. The gels are formed from selectively hydrogenated styrene/diene block copolymers, unhydrogenated styrene/diene block copolymers, and selectively hydrogenated styrene/diene block copolymers that have been maleated.

    摘要翻译: 公开了与现有技术相比具有改进性能的四种凝胶组合物。 这些凝胶包括弹性体,固体橡胶状凝胶,UV固化凝胶和化学固化的凝胶。 凝胶由选择性氢化的苯乙烯/二烯嵌段共聚物,未氢化的苯乙烯/二烯嵌段共聚物和已经马来化的选择性氢化的苯乙烯/二烯嵌段共聚物形成。

    Photocurable compositions and flexographic printing plates comprising the same
    4.
    发明授权
    Photocurable compositions and flexographic printing plates comprising the same 有权
    含有该组合物的光固化性组合物和柔性版印刷版

    公开(公告)号:US07241540B2

    公开(公告)日:2007-07-10

    申请号:US10832733

    申请日:2004-04-27

    IPC分类号: G03F7/033

    摘要: The present invention relates to photocurable compositions for use in flexographic printing plates comprising selectively hydrogenated block copolymers of conjugated dienes and monoalkenyl arenes and flexographic printing plates made from the same. The block copolymers, either linear or radial, have terminal blocks of unsaturated conjugated diene. The block copolymer is further comprised of monoalkenyl arene blocks and hydrogenated conjugated diene blocks. The compositions exhibit exceptional improvement in degree of cure over comparative selectively hydrogenated block copolymers.

    摘要翻译: 本发明涉及用于柔性版印刷版的可光固化组合物,其包含共轭二烯和单烯基芳烃的选择性氢化嵌段共聚物和由其制备的柔性版印刷版。 线性或径向嵌段共聚物具有不饱和共轭二烯的嵌段。 嵌段共聚物还包含单烯基芳烃嵌段和氢化共轭二烯嵌段。 与对比的选择性氢化嵌段共聚物相比,组合物的固化程度显着提高。

    Telechelic polymers and heterotelechelic polydiene block polymers with
dual cure systems
    6.
    发明授权
    Telechelic polymers and heterotelechelic polydiene block polymers with dual cure systems 失效
    具有双重固化体系的远端聚合物和异丙烯基聚二烯嵌段聚合物

    公开(公告)号:US5576388A

    公开(公告)日:1996-11-19

    申请号:US519885

    申请日:1995-08-28

    摘要: Pressure sensitive structural adhesive and sealant compositions comprising: (a) a polymer system comprising from 95 to 15 percent by weight of a telechelic polymer and from 5 to 85 percent by weight of a heterotelechelic polymer wherein at least one of the functionalities thereon is the same as the functionality on the telechelic polymer, and (b) a dual curing system wherein one element of the curing system cures the telechelic polymer and the common functionality on the heterotelechelic polymer and the other element cures the functionality on the heterotelechelic polymer but does not cure under the conditions required to cure the telechelic polymer to form a structural adhesive or sealant composition. In a preferred embodiment, the polymer system is comprised of a hydroxyl functional telechelic diol or polyol polymer and the heterotelechelic polymer is a monohydroxylated polydiene polymer which also has epoxidized olefin functionality. The dual curing system preferably is comprised of an isocyanate curing agent to cure through the hydroxyl groups at ambient temperatures to form a pressure sensitive adhesive or sealant and an amino resin to cure through the epoxy functionality upon baking to form a structural adhesive or sealant.

    摘要翻译: 压敏结构粘合剂和密封剂组合物,其包含:(a)包含95至15重量%的遥爪聚合物和5至85重量%的异丙炔基聚合物的聚合物体系,其中至少一个其上的官能团相同 作为遥爪聚合物上的功能,和(b)双重固化系统,其中固化体系的一个元素固化遥爪聚合物,并且杂多聚乙烯聚合物上的共同官能团固化,而另一个元素固化在异极性聚合物上的功能,但不固化 在固化遥爪聚合物以形成结构粘合剂或密封剂组合物所需的条件下。 在一个优选的实施方案中,聚合物体系由羟基官能的遥爪二醇或多元醇聚合物组成,并且所述聚异戊烯聚合物是也具有环氧化烯烃官能团的单羟基化聚二烯烃聚合物。 双重固化体系优选由异氰酸酯固化剂组成,以在环境温度下固化通过羟基,以形成压敏粘合剂或密封剂和氨基树脂,以在烘烤时通过环氧官能团固化以形成结构粘合剂或密封剂。

    Epoxidized viscous conjugated diene block copolymers
    10.
    发明授权
    Epoxidized viscous conjugated diene block copolymers 失效
    环氧粘度共轭二烯嵌段共聚物

    公开(公告)号:US5229464A

    公开(公告)日:1993-07-20

    申请号:US692839

    申请日:1991-04-29

    摘要: A viscous block copolymer of the formula(A--B--A).sub.n --Y.sub.r --(A.sub.q --B).sub.mwherein Y is a coupling agent or coupling monomers, andwherein A and B are polymer blocks which may be homopolymer blocks of conjugated diolefin monomers, copolymer blocks of conjugated diolefin monomer or copolymer blocks of conjugated diolefin monomers and monoalkenyl aromatic hydrocarbon monomers, andwherein the A blocks have a higher number of aliphatic double bonds between a tertiary carbon atom and either a primary or secondary carbon atom per unit of block mass than do the B blocks, andwherein the A blocks have a molecular weight from about 100 to about 3000 and the B blocks have a molecular weight from about 1000 to about 15,000, andwherein p and q are 0 or 1 and n>0, r is 0 or 1, m.gtoreq.0 and n+m ranges from 1 to 100.This block copolymer is preferably partially hydrogenated, epoxidized and crosslinked through at least some of the epoxy functionality to form an adhesive, coating or sealant composition.

    摘要翻译: 式(ABA)n-Yr-(Aq-B)m的粘性嵌段共聚物,其中Y是偶联剂或偶联单体,其中A和B是可以是共轭二烯烃单体的均聚物嵌段的聚合物嵌段,共聚物嵌段 的共轭二烯单体或共轭二烯烃单体和单链烯基芳族烃单体的共聚物嵌段,其中A嵌段在叔碳原子和每单位嵌段质量的伯或仲碳原子之间具有更高数量的脂族双键 B嵌段,其中A嵌段的分子量为约100至约3000,B嵌段的分子量为约1000至约15,000,并且其中p和q为0或1且n> 0,r为 0或1,m≥0和n + m的范围为1至100.该嵌段共聚物优选部分氢化,环氧化并通过至少一些环氧官能团交联以形成粘合剂,涂料或密封剂组合物。