Abstract: A method of crosslinking poly-.alpha.-olefin series resins, comprising the steps of subjecting a resin composition to graft reaction under a volume ratio of oxygen to the resin composition set at less than 0.1 and at temperatures ranging between the thermal decomposition temperature of the radical generating agent and 230.degree. C., said composition comprising at least one kind of poly-.alpha.-olefin series resin of polypropylene series resin, poly(butene-1) series resin or poly(4-methyl pentene-1) series resin; a radical generating agent of dibenzoyl peroxide or t-butyl perbenzoate; and a silane compound having the general formula of RR'SiY.sub.

Abstract: Methods of bonding between thermoplastic or thermosetting resins and inorganic oxide substrates are improved by providing to the resin/inorganic oxide interface as an adhesion promoter a combination of (a) a copolymer of an ethylenically unsaturated organic monomer and an unsaturated organosilane containing hydrolyzable groups; and (b) a monomeric hydrolytically reactive organosilane.

Abstract: A silicon peroxide selected from the formulas:(R').sub.4-n --Si--(OOR).sub.n (a) ##STR1## wherein n is an integer of 1-3; R is a t-octyl group in which a tertiary carbon atom is directly bonded to the peroxy group; and R' is selected from alkyl, phenyl, and alkenyl (provided n is not more than 2), and a carbon chain which forms a saturated heterocyclic ring with the silicon atom, each R' group having up to about 10 carbon atoms. Typical is trimethyl (2,4,4-trimethyl-2-pentylperoxy) silane. These molecules are useful as catalysts for curing polyester resins and are particularly advantageous as crosslinking agents for high density polyethylene in that crosslinking is effected at lower temperatures than required by the prior art.

Abstract: Ambient temperature curable compositions comprising a hydroxyl containing organic polymer and an aminosilicon compound, said compositions being useful as protective coating compositions.

Abstract: Novel silicon-containing derivatives of polybutadiene or copolymers of butadiene with other copolymerizable monomer or monomers in which organosilicon-containing groups are bonded to the carbon atoms in the main chain of the butadiene polymers through the carbon-silicon linkages. These derivatives of butadiene polymers are produced by the addition reaction of an organosilicon compound having one hydrogen atom directly bonded to the silicon atom in the molecule to the double bonds in the butadiene polymers. They have a good fluidity, a small temperature dependency of viscosity, an excellent thermal stability and a high anti-oxidation resistance, as well as a good compatibility with siliceous fillers which are added to give improved workability and transparency to the compositions. The compositions to which a crosslinking agent and a curing catalyst are added can be cured into a rubber-like elastomer having excellent properties suitable for applications in various fields.

Abstract: A fusable powder composition comprising a cross-linkable organic polymeric material of less than 75 micron size, an organic peroxide, and preferably for some polymers an organosilicon compound for forming polymeric coatings on substrates such as glass or metal.

Abstract: Allyl halides will form copolymer with polymerizable unsaturated organic compounds in the presence of an oxidized silicon catalyst.

Abstract: A silicon peroxide selected from the formulas:(R').sub.4-n --Si--(OOR).sub.n (a) ##STR1## wherein n is an integer of 1-3; R is a t-octyl group in which a tertiary carbon atom is directly bonded to the peroxy group; and R' is selected from alkyl, phenyl, and alkenyl (provided n is not more than 2), and a carbon chain which forms a saturated heterocyclic ring with the silicon atom, each R' group having up to about 10 carbon atoms. Typical is trimethyl (2,4,4-trimethyl-2-pentylperoxy) silane. These molecules are useful as catalysts for curing polyester resins and are particularly advantageous as crosslinking agents for high density polyethylene in that crosslinking is effected at lower temperatures than required by the prior art.

Abstract: A curable polyester oligomer having a molecular weight of between 300 and 10,000 and at least one silyl radical at the side chain or at the end of the molecule, with the silyl radical being represented by the formula: ##STR1## wherein R, R.sub.1 and R.sub.2 represent hydrogen or any monovalent hydrocarbon radical with 1 to 10 carbon atoms, selected from the group consisting of alkyl radical, aryl radical and aralkyl radical; R.sub.3 represents divalent hydrocarbon radical with 0 to 10 carbon atoms, "X" represents any radical selected from the group consisting of halogen, alkoxy, acyloxy, aminoxy, phenoxy, thioalkoxy, and amino radicals; "a" is an integer 0, 1 or 2; and "b" is an integer 0 or 1.

Abstract: An ambient temperature curable composition comprising a compound having a silyl group capable of being cured at ambient temperature in the presence of water and a silicon compound having a group capable of reacting with the terminal silyl group.

Abstract: The invention relates to a process for the treatment of substantially amorphous polyolefins to provide permanently tacky, low viscosity materials which have useful pressure-sensitive adhesive properties. These permanently tacky amorphous polyolefin homo- and copolymers, as well as blends of such amorphous polyolefins with crystalline polyolefins containing up to 20 weight percent crystalline polyolefin, are novel pressure-sensitive adhesives.

Abstract: Lithium metal-terminated polymers of one or more conjugated dienes and of one or more monoalkenyl arenes are coupled by reaction with a coupling agent of the general formula ##STR1## where the R groups are optionally substituted hydrocarbyl groups, R.sub.1 is hydrogen, R or OR, and R.sub.2 is an optionally substituted alkylene group which may contain one or more oxygen atoms.

Abstract: Bonding between thermoplastic resins and inorganic oxide substrates is improved by providing to the resin/inorganic oxide interface as an adhesion promoter a combination of (a) a copolymer of an ethylenically unsaturated organic monomer and an unsaturated organosilane containing hydrolyzable groups; and (b) a monomeric hydrolytically reactive organosilane.

Abstract: A powder coating composition is disclosed. The composition comprises at least one 1, 2 epoxy compound combined with a functionally terminated elastomer and a curing agent mixture. The curing agent mixture comprises an imidazoline derivative combined with an adduct of (a) a polyhydroxyl compound and (b) a diglycidyl ether of the polyhydroxyl compound, where reactant (b) is present in a less than equimolar amount to reactant (a).

Abstract: An abrasion-resistant coating composition is disclosed which comprises a polyvinyl acetal having a hydroxyl group content, calculated as polyvinyl alcohol, of from 35 to 50 percent by weight and polysilicic acid, the weight ratio of polysilicic acid to polyvinyl acetal being from 2:1 to 4:1.

Abstract: Branched block copolymers of from 60 to 95 percent by weight of a monovinyl-aromatic compound and from 40 to 5 percent by weight of a conjugated diene.The branched block copolymers have a structure of the general formula(A.sup.1 --A.sup.2 --B.fwdarw.A.sup.3).sub.n --X--(A.sup.3 .rarw.B--A.sup.2).sub.mwhere the A's are non-elastomeric polymer segments based on the monovinyl-aromatic compound, the B's are elastomeric polymer segments based on the conjugated diene, X is the radical of an at least trifunctional coupling agent and n and m are numbers.The branched block copolymers may be used for the manufacture of highly transparent impact-resistant shaped articles, especially packaging materials.

Abstract: A monovinyl arene, such as styrene, is polymerized with a monofunctional lithium initiator, followed by addition of a conjugated diene, such as butadiene, with additional monofunctional lithium initiator. The resultant block copolymers are coupled to give linear coupled block copolymers or radial coupled block copolymers with a random distribution of homopolymer and copolymer branches. The polymers exhibit increased tack and improved creep resistance in adhesive compositions. The amount of initiator added as the second increment with the second monomer must be greater than the amount added as the first increment with the first monomer.

Abstract: Linear and branched teleblock copolymers having the configuration (A--B--C).sub.n Z and their hydrogenated derivatives are disclosed, wherein n is an integer from 2 to 4, Z is the residue of either a polyfunctional coupling agent or a polyfunctional initiator or is a covalent chemical bond when n=2, A is a block of a polymerized monovinylarene monomer having 8 to 16 carbon atoms per monomer unit, B is a block of a polymerized conjugated diene having 4 to 12 carbon atoms per monomer unit in which said polymerized block has on the average at least one hydrocarbyl side chain branch for about every 10 carbon atoms of the polymeric backbone, and C is a low vinly polybutadiene block. The hydrogenated teleblock copolymers have the configuration (A--B'--C').sub.n Z wherein n, Z, and A are as defined above, B' is a hydrogenated block B and C' is hydrogenated block C.