摘要:
A polymerizable vinyl monomer represented by the formula: ##STR1## wherein R represents a hydrogen atom or methyl group and n is a real number of 3 to 100, and preparation thereof. The vinyl monomer is useful for the preparation of vinyl resin which is highly reactive in crosslinking with a hardener and capable of resulting in a coating of resilient, tough and flexible nature.
摘要:
Benzyl pyridinium or ammonium salts of a non-nucleophilic anion are useful as a cationic polymerization initiator having a heat latency. A variety of resinous compositions containing this initiator is also disclosed.
摘要:
Benzylpyridinium or benzylammonium salts of a benzenesulfonate anion are useful as a proton-donating curing catalyst ion a resinous system capable of curing in the presence of such a catalyst. The catalyst is characterized by its heat-latent nature and thus does not impair the storage stability of the resinous system at an ambient temperature.
摘要:
A novel class of polymerizable monomers containing silicons represented by the formula: ##STR1## wherein R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon residue; R.sup.2 represents an alkylene attached to silicon atom and selected from an unsubstituted alkylene, a substituted alkylene, an unsubstituted alkylene containing hetero atoms or a substituted alkylene containing hetero atoms; m and n each represents a positive number which will fulfil the requirement of 2.ltoreq.m+n.ltoreq.4; R.sup.3 is hydrogen or methyl; A is a direct bond, ##STR2## or a substituted or unsubstituted phenylene; B is ##STR3## R.sup.4 and R.sup.5 each represents an alkylene, providing that when A represents ##STR4## m+n is 2. The invention also provides a preparation method thereof.
摘要:
A novel class of silicon-containing vinyl polymers having in its molecule at least one constitutent unit of the formula ##STR1## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon residue; R.sup.2 is ##STR2## R.sup.3 is hydrogen or methyl group; R.sup.4 is a substituent directly bonded to silicon atom and is selected from a substituted or unsubstituted alkylene, or a substituted or unsubstituted alkylene containing hetero atoms; m and n each is a positive integer, which will fulfill the requirement of 2.ltoreq.m+m.ltoreq.4; A is a direct bond, ##STR3## phenylene or substituted phenylene; B is ##STR4## R.sup.5 and R.sup.6 each represents an alkylene, providing that when A is ##STR5## m+n is 2. The present vinyl polymers are very useful in various technical fields including preparation of lens and other molding products, paints and various industrial resins.
摘要翻译:一类新颖的含硅乙烯基聚合物,其分子中具有至少一个下式的组成单元,其中R1是取代或未取代的一价烃残基; R2是氢或甲基; R4是与硅原子直接键合的取代基,其选自取代或未取代的亚烷基,或取代或未取代的含有杂原子的亚烷基; m和n分别为正整数,满足2 m + m <= 4的要求; A是直接键合,亚苯基或取代亚苯基; B是图像,R 5和R 6各自表示亚烷基,条件是当A为m + n为2.本发明的乙烯基聚合物在各种技术领域中非常有用,包括制备透镜和其它成型产品,油漆和各种 工业树脂。
摘要:
A silicone compound of the rational formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently a hydrogen atom or a hydrocarbon radical free from acetylenic unsaturaiton; Z is --O--, --S-- or --NH--; Y is a divalent organic group; R.sup.3 is a hydrogen atom, an akyl, alkenyl, alkoxy or phenyl group; and m and n are rational numbers satisfy the ration of 4>m+n.gtoreq.2. The compound is useful as a precursor of nonemanating, self-curing and heat resistant silicone resins.
摘要:
This invention discloses a curing resin composition comprising (a) an organic resin containing no less than 2 alkenyl groups per molecule, and having a number average molecular weight of 500-100,000. (b) an organohydrogen-polysiloxane containing no less than 2 Si--H bonds per molecule, and (c) a platinum catalyst. It is desired that the organic resin of component (a) is at least one type chosen from acrylic, polyester and epoxy. The preferable amount of component (b) is such that there are 0.8-4 hydrogen atoms bonded to silicon atoms per alkenyl group of component (a).
摘要:
A curable resin composition containing (a) a homo- or copolymer of an organohydrogenpolysiloxane macromonomer, (b) an alkenyl group-containing polymer, and (c) a hydrosilylation catalyst is disclosed. The organohydrogenpolysiloxane macromonomer may be incorporated into a single polymer entity together with an alkenyl group-containing monomer unit to produce a self-crosslinkable copolymer.
摘要:
A method of forming multilayer coatings including a pigmented base coat layer applied on a substrate such as automobile bodies comprises applying, as an outermost layer, a clear coat composition comprising (a) a resin having pluralities of hydrosilyl groups and alkenyl groups in the molecule or a blend of resins having a plurality of hydrosilyl groups in the molecule and a plurality of alkenyl groups in the molecule, respectively, and (b) a compound catalyzing the addition reaction of the hydrosilyl group to the alkenyl group.
摘要:
The present invention provides a paint film with fewer craters and indentations, while maintaining performance as an electrodeposition paint. The electrodeposition paint composition contains an aqueous dispersing system containing an electrodepositable resin and a block polymer containing polysiloxane units and polyalkylene oxide units.