Disclosed are spirocyclic olefin polymers, methods of preparing spirocyclic olefin polymers, photoresist compositions including spirocyclic olefin resin binders and methods of forming relief images using such photoresist compositions.
A process for grafting functional organic groups onto EPM and EPDM polymers wherein the grafting reaction is carried out in the cement in which the polymer is originally formed by solution polymerization.
Process for preparation of oil compositions comprising a viscosity index improver-dispersant additive
申请人:EXXON RESEARCH AND ENGINEERING COMPANY
公开号:EP0171167A2
公开(公告)日:1986-02-12
Hydrocarbon polymers such as ethylene copolymers may be reacted with unsaturated nitrogen-containing monomers or unsaturated carboxylic acids in the presence of a free radical catalyst such as a peroxide or azo free radical initiator and a chain stopping agent, e.g. a mercaptan to inhibit excessive cross-linking and branching. The copolymer grafted directly with the nitrogen-containing monomers may be utilized as an additive for oil and fuel compositions, particularly lubricating oil compositions as a V.I.-dispersant additive. The polymer reacted with carboxylic acid may be further reacted with amines, polyols, amino-alcohols, etc. to also form a V.L-dispersant additive.
Preparation of a graft-copolymeric compatibilizer useful as an oil additive
申请人:ROHM AND HAAS COMPANY
公开号:EP0193272A2
公开(公告)日:1986-09-03
A compatibilizer for stabilizing polymer blends of olefin copolymer and polymethacrylate oil additives is prepared by graft polymerizing hydrocarbon backbone polymer with alkyl methacrylate monomer, in the presence of a free radical initiator, at a temperature of from 60°C to 175°C. The compatibilizer so formed comprises a graft copolymer-containing solution having a polymer solids content of from 40 to 60 percent, a viscosity of at least 8 x 10-3M2S-1 at 100°C, and a weight percent conversion of alkyl methacrylate monomer to polymer of no less than 90%.
Use of olefin polymer viscosity index improver additive in oil compositions
申请人:EXXON CHEMICAL PATENTS INC.
公开号:EP0208525A2
公开(公告)日:1987-01-14
Olefin polymers are degraded in molecular weight in the presence of a free radical initiator under an inert blanket. The degradation preferably is carried out under high shearing stress and/or a high temperature in order to increase the degradation. The degradation may be separate from, overlap, or occur simultaneously with further derivatization of the polymer.