Catalytic amination of polymeric polyols and resulting amino substituted polymers
AssigneeMonsanto Company
InventorCharles F. Hobbs
Life of this patent
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Abstract
Amino substituted polymeric polyols are produced through Group VIII metal catalytic amination of polymers comprising ethylenically unsaturated alcohols and copolymers of said alcohols and vinyl compounds. Polyamines produced by the amination of polyols and/or copolymers thereof having pendant amino and hydroxyl groups or polyamines having said groups fixed to pendant methylene groups are represented by the general formula: ##STR1## WHERE R is hydrogen or an acyl group; R', r" are hydrogen or an alkyl group n is an integer and m, p and w are integers of 1 or more; and ##STR2## WHERE R and R' are hydrogen or an alkyl group, m is an integer n, p, and i w are integers of one or more.
Claims9
A catalytic process for producing polymers having pendant amino and hydroxyl groups comprising the amination of polymers of ethylenically unsaturated alcohols selected from vinyl and allyl alcohols, and copolymers of said alcohols and vinyl compounds selected from the group consisting of vinyl esters of monocarboxylic acids and styrene, said process comprising contacting said polymers of ethylenically unsaturated alcohols or copolymers with at least one of ammonia, mono- and di- aliphatic amines in the presence of a Group VIII metal hydrogenation catalyst, at a temperature of from 125.degree. C to 300.degree. C and a pressure of from about 500 to 2500 psig, said unsaturated alcohol polymers and copolymers having a weight average molecular weight of from about 1700 to about 115,000.
Amino substituted polymeric polyols of enhanced emulsifying capability having the general formula ##STR7## where R is hydrogen or an acyl group:
- R' and R" are hydrogen or an alkyl group,
- n is an integer and
- m, p and w are integers of 1 or more,
- produced by the catalytic amination of polymers consisting of polyvinyl alcohol and copolymers of vinyl alcohol and vinyl acetate having a weight average molecular weight of from about 1700 to about 115,000 with at least one of ammonia, mono- and di-aliphatic amines in the presence of a Group VIII metal hydrogenation catalyst at a temperature of from 125.degree. to 300.degree. C and a pressure of from about 500 to 2500 psig.
Amino substituted polyols having the general formula ##STR8## where R' and R" are hydrogen or an alkyl group and m, n, p and w are integers of 1 or more, produced by the catalytic amination of copolymers of styrene and allyl alcohol having a weight average molecular weight of from about 1700 to about 115,000 with at least one of ammonia, mono- and di- aliphatic amines in the presence of a Group VIII metal hydrogenation catalyst at a temperature of from 125.degree. to 300.degree. C and a pressure of from about 500 to 2500 psig.
Dependencies are inferred from the claim text.