US 12,612,529 B2 · Ethylene/alpha-olefin copolymer composition and application thereof

Abstract

An object of the present invention is to obtain a composition having, for example, improved anti-sagging properties, pigment dispersibility, and crack resistance, and the present invention relates to an ethylene/α-olefin copolymer composition including: an ethylene/α-olefin copolymer (A) satisfying requirements (a-1) to (a-3) described below; one or more selected from a color material (D), a resin (E) and an oil (F); and a solvent (C), (a-1) a methyl group index measured by 1H-NMR is in a range of 40 to 60%, (a-2) a weight average molecular weight (Mw) determined by gel permeation chromatography (GPC) is in a range of 3,000 to 30,000, (a-3) no melting peak is observed at temperatures ranging from −100° C. to 150° C. in differential scanning calorimetry (DSC).

Claims11

Dependent claims

An ethylene/α-olefin copolymer composition comprising:

an ethylene/α-olefin copolymer (A) satisfying requirements (a-1) to (a-3) described below, wherein a content of the ethylene/α-olefin copolymer (A) is 20 to 50 mass % of the whole of the composition taken as 100 mass %;
one or more selected from a color material (D), a resin (E) and an oil (F);
and
a solvent (C);
(a-1) a methyl group index measured by 1H-NMR is in a range of 40 to 60%,
(a-2) a weight average molecular weight (Mw) determined by gel permeation chromatography (GPC) is in a range of 3,000 to 30,000,
(a-3) no melting peak is observed at temperatures ranging from-100° C. to 150° C. in differential scanning calorimetry (DSC).

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/766,526Filed 6 Oct 2020

Priority

JP 2019-1844547 Oct 2019

Published

US 2022/0411659 A129 Dec 2022

Granted

28 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

C09D 123/14
Homopolymers or copolymers of propene: copolymers of propene
C09D 123/16
Not modified by chemical after-treatment: elastomeric ethylene-propylene or ethylene-propylene-diene copolymers , e.g. EPR and EPDM rubbers
C08F 210/16
Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond: copolymers of ethene with alpha-alkenes, e.g. EP…
C08F 255/04
On to polymers of olefins having two or three carbon atoms: on to ethylene-propylene copolymers

Ethylene/alpha-olefin copolymer composition and application thereof

Life of this patent

Ethylene/alpha-olefin copolymer composition and application thereof

Life of this patent

Abstract

Claims11