Fluorine-containing alpha,omega-bifunctional compounds and process for their production
申请人:SAGAMI CHEMICAL RESEARCH CENTER
公开号:EP0383141A2
公开(公告)日:1990-08-22
A fluorine-containina α,ω-bifunctional compound havina the formula:
wherein each of R1 and R2 independently is a hydrogen atom, an alkyl group or an aralkyl group; X is -COOH, -COOR3, -COY or -NCO, wherein R3 is an alkyl group or an aralkyl group and Y is a halogen atom or N3; and n is an integer of at least 1 provided that when X is -COOH, n is an integer of at least 4.
Fluorinated diisocyanates of the general structure OCN(CH2)2(CF2)n(CH2)2NCO were prepared from alpha,omega-diiodoperfluoroalkanes by insertion of ethylene into the CF2-I bond, displacement of the iodo groups with azide, reduction of the resulting azide groups to amines, and phosgenation of the diamine.
Fluorinated reactive compositions for golf balls
申请人:Rajagopalan Murali
公开号:US20060199937A1
公开(公告)日:2006-09-07
A golf ball is disclosued, comprising: a core, the core having a diameter of 1.5 inches to 1.65 inches and a first coefficient of restitution of 0.8 or greater at 125 ft/s; an intermediate layer disposed about the core, the intermediate layer having a first Shore D hardness of 20 to 80 and comprising a blend of two or more ionomers; and an outer cover layer disposed about the intermediate layer; the outer cover layer having a thickness of 0.005 inches to 0.05 inches and a second Shore D hardness of 30 to 70, the outer cover layer being composed of a castable material formed from reactants comprising at least one fluorinated polyfunctional compound, wherein the golf ball has a second coefficient of restitution of 0.8 or greater at 125 ft/s and a compression of 50 to 120.