Flexible elastic rubber compounds with improved dielectric and tear strength for cold shrink splices and preparation method thereof

Patent metadata

Field	Value
Publication number	US-10093794-B2
Application number	US-201415322239-A
Country	US
Kind code	B2
Filing date	Jun 27, 2014
Priority date	Jun 27, 2014
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A cold shrink article made from a composition comprising (A) an ethylene/α-olefin interpolymer; (B) a filler; and (C) an α,β-unsaturated carboxylic acid. The composition may optionally include additives selected from the group consisting of plasticizer, peroxide curing agent, antioxidant, process additives, flame retardant and combinations thereof.

First claim

The invention claimed is:

1. A cold shrink article made from a composition consisting essentially of:
(A) 100 parts by weight ethylene/α-olefin interpolymer;
(B) 20-80 phr filler;
(C) 1-20 phr α,β-unsaturated carboxylic acid;
(D) 1-20 phr plasticizer;
(E) 1-5 phr peroxide curing agent;
(F) 0-5 phr antioxidant;
(G) 0-5 phr process additive; and
(H) 0-50 phr flame retardant.

2. The cold shrink article of claim 1 consisting essentially of:
(A) 100 parts by weight EPDM;
(B) 20-80 phr MgO;
(C) 1-20 phr MAA;
(D) 1-20 phr plasticizer;
(E) 1-5 phr peroxide curing agent;
(F) 0-5 phr antioxidant;
(G) 0-5 phr process additive; and
(H) 0-50 phr flame retardant.

Assignees

• Dow Global Technologies Llc
• Yu Haiyang
• Huo Yanli

Inventors

• Yu Haiyang
• Huo Yanli
• Esseghir Mohamed
• Sengupta Saurav
• Cogen Jeffrey

Classifications

• C08K3/22 Primary

  of metals · CPC title

• H01B3/447

  from acrylic compounds · CPC title

• C08K5/09 Primary

  Carboxylic acids; Metal salts thereof; Anhydrides thereof · CPC title

• H01B3/441

  from alkenes · CPC title

• C08L23/16 Primary

  Ethylene-propylene or ethylene-propylene-diene copolymers · CPC title