US 11,634,574 B2 · Rubber-containing graft polymer, resin composition containing rubber-containing graft polymer, and shaped article of same

Abstract

Provided is a rubber-containing graft polymer which is excellent in mechanical strength such as weld strength or impact strength, required as a rubber-containing graft polymer. A rubber-containing graft polymer (A) of the present invention is a rubber-containing graft polymer having a graft chain, in which when the rubber-containing graft polymer is mixed with an organic solvent and separated into an organic solvent insoluble component and an organic solvent soluble component, a caprolactone unit is contained in a graft chain contained in the organic solvent insoluble component.

Claims11

Dependent claims

A rubber-containing graft polymer which is obtained by emulsion graft polymerization of 5% to 50% by mass of a monomer for grafting (b) comprising a vinyl monomer (f-1) represented by Formula (1) to 50% to 95% by mass of rubber latex,

CH2═CR1COO(CH2)qO[CO(CH2)mO]nH (1)
wherein in the formula, R1 represents hydrogen or a methyl group, q represents an integer of 2 to 5, m represents an integer of 3 to 10, and n represents an integer of 1 to 10, and
wherein a particle size distribution Dv/Dn of the rubber latex is 1.5 or less, wherein Dv is a volume average particle size, and Dn is a number average particle size.

Dependencies are inferred from the claim text.

Facts

Application

16/897,075Filed 9 Jun 2020 · continuation

Priority

JP JP2017-24776625 Dec 2017

Published

US 2020/0299502 A124 Sep 2020

Granted

25 Apr 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

C08L 51/003
Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds ;…:…
B29C 45/0001
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor: characterised…
C08F 2/24
Emulsion polymerisation: with the aid of emulsifying agents
C08F 212/08
Hydrocarbons: styrene

Rubber-containing graft polymer, resin composition containing rubber-containing graft polymer, and shaped article of same

Life of this patent

Rubber-containing graft polymer, resin composition containing rubber-containing graft polymer, and shaped article of same

Life of this patent

Abstract

Claims11