US 12,365,765 B2 · Poly(arylene sulfide) polymers and corresponding polymer compositions and articles

Abstract

Described herein are poly(arylene sulfide) (“PAS”) polymers (PASP) including recurring units formed from selected dihalofluorene monomers. Surprisingly, at relative low dihalofluorene monomer concentrations, the PAS polymers (PASP) have significantly increased glass transition temperatures (“Tg”) and impact performance, relative to analogous PAS homopolymers and PAS polymers (PASP) including recurring units formed from 4,4′-dibromobiphenyl (“DBBP”). Simultaneously, the PAS polymers (PASP) also retain high elastic modulus. Furthermore, the PAS polymers (PASP) are free of recurring units formed from polyhalogenated biphenyls (e.g. DBBP and polychlorinated biphenyls) and, therefore, are not currently subject to restrictive governmental regulation. Due at least in part to the excellent thermal (Tg, Tc and Tm) and impact properties of the PAS polymers (PASP), the PAS polymers (PASP) and PAS polymer compositions can be desirably incorporated into wide variety of articles including, but not limited to, automotive articles, electrical and electronic articles, articles for aerospace and oil and gas articles.

Claims18

Dependent claims

A poly(arylene sulfide) (“PAS”) polymer (PASP) comprising recurring units RPAS1 and RPAS2, represented by the following formulae, respectively:

[—Ar1—S—], (1)
[—Ar2—S—], (2)
wherein
—Ar1— is selected from the group of formulae-consisting of:
—Ar2— is represented by the following formula:
R and R′, at each instance, is independently selected from the group consisting of a C1-C12 alkyl group, a C7-C24 alkylaryl group, a C7-C24 aralkyl group, a C6-C24 arylene group, and a C6-C18 aryloxy group;
T is selected from the group consisting of a bond, —CO—, —SO2—, —O—, —C(CH3)2, phenyl and —CH2—;
i, at each instance, is an independently selected integer from 0 to 4;
j and k, at each instance, are an independently selected integer from 0 to 3;
R1 is selected from the group consisting of a hydrogen, a fluorine, a C1-C12 alkyl group, a C7-C24 alkyaryl group, and a C6-C24 aryl group;
and
R2 is selected from the group consisting of a fluorine, a C1-C12 alkyl group, a C7-C24 alkyaryl group, and a C6-C24 aryl group.

9 more elements

Dependencies are inferred from the claim text.

Poly(arylene sulfide) polymers and corresponding polymer compositions and articles

Life of this patent

Poly(arylene sulfide) polymers and corresponding polymer compositions and articles

Life of this patent

Abstract

Claims18