Invention Grant
- Patent Title: Liquid polymer
- Patent Title (中): 液体聚合物
-
Application No.: US10876941Application Date: 2004-06-25
-
Publication No.: US07271218B2Publication Date: 2007-09-18
- Inventor: Lawson Gibson Wideman , Vanessa Marika Guscoff , Michael Joseph Rachita
- Applicant: Lawson Gibson Wideman , Vanessa Marika Guscoff , Michael Joseph Rachita
- Applicant Address: US OH Akron
- Assignee: The Goodyear Tire & Rubber Company
- Current Assignee: The Goodyear Tire & Rubber Company
- Current Assignee Address: US OH Akron
- Agent Alvin T. Rockhill
- Main IPC: C08L83/06
- IPC: C08L83/06

Abstract:
This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, wherein the article has improved tensile strength and improved tear strength, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an ether moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy)silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold. This invention also discloses that the elasticity of such cured elastomeric articles can be increased without reducing cure levels by incorporating a liquid C5 tackifier resin into the liquid polymer.
Public/Granted literature
- US20050288423A1 Liquid polymer Public/Granted day:2005-12-29
Information query