US 3,931,287 A · Polyene compounds

Abstract

The invention disclosed is for a new and novel class of liquid polyene compositions formed of a molecule containing at least two unsaturated carbon-to-carbon bonds disposed at terminal positions on a main chain backbone of the molecule. The molecule includes unsaturated carbon-to-carbon bonds connected by a divalent chemically compatible derivative to a stable, organic, polyvalent, and polymeric member free of reactive carbon-to-carbon unsaturation and free of highly water-sensitive members. The new class of liquid polyene compositions which have a molecular weight in the range 300 to 20,000, and a viscosity in the range from essentially 0 to 20 million centipoises at 70.degree.C., may usefully form a component of a system which upon curing in the presence of a free radical generator and a polythiol, forms odorless, solid, elastomeric products. The cured products may be used as sealants, coatings, adhesives and molded articles.

Claims5

Dependent claims

A polyene compound which comprises the formula:

##EQU15## wherein R is a radical selected from the group consisting of hydrogen, fluorine, chlorine, phenyl, benzyl, alkyl, and cycloalkyl;
said alkyl having from 1 to 9 carbon atoms and said cycloalkyl having from 3 to 8 carbon atoms;
wherein [A] is free of reactive carbon-to-carbon unsaturation and formed of at least two repeating units selected from the group consisting of --CH.sub.2) .sub.g, --C.sub.2 H.sub.4 O) .sub.h, --C.sub.3 H.sub.6 O) .sub.h, and --C.sub.4 H.sub.8 O) .sub.h, g is an integer from 1 to 9 and h is an integer from 1 to 200;
said compound having a molecular weight in the range of 300 to 20,000 and a viscosity in the range from essentially 0 to 20 million centipoises at 70.degree.C;
and wherein R.sub.7 is a member of the group consisting of hydrogen, phenyl, cycloalkyl, alkyl, and CH.sub.2 =CH--, wherein said alkyl has from 1 to 9 carbon atoms, said cycloalkyl has from 3 to 8 carbon atoms, and n is at least 1.

2 more elements

Dependencies are inferred from the claim text.

Polyene compounds

Life of this patent

Polyene compounds

Life of this patent

Abstract

Claims5