Unlock instant, AI-driven research and patent intelligence for your innovation.

Elastomer compositions for tire components and tires containing them

A composition, elastomer technology, applied in the direction of tire parts, special tires, transportation and packaging, etc., can solve problems that do not discuss winter performance or application

Active Publication Date: 2020-08-25
PIRELLI TYRE SPA
View PDF20 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Said literature does not discuss winter performance or application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Elastomer compositions for tire components and tires containing them
  • Elastomer compositions for tire components and tires containing them
  • Elastomer compositions for tire components and tires containing them

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0085] For purposes of this specification and the following claims, the term "phr" (parts per hundred rubber) means parts by weight of a given component of the elastomeric composition per 100 parts by weight of solid diene elastomeric polymer (D).

[0086] All percentages are expressed as weight percentages unless otherwise indicated.

[0087] The elastomer composition for tires according to the present invention is characterized by one or more of the following preferred aspects presented alone or in combination with each other.

[0088] Said composition comprises an amount X of at least one liquid polymer (A), wherein said amount X is at least 1 phr, preferably at least 3 phr or 5 phr or 10 phr or 15 phr or 20 phr.

[0089] The composition preferably comprises an amount X of at least one liquid polymer (A) of less than 70 phr, more preferably less than 60 phr, even more preferably less than 50 phr.

[0090] The composition preferably comprises an amount X of at least one liq...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to winter or all-season vehicle tires comprising components, preferably tread crowns, obtained by vulcanization of novel elastomeric compositions. Said elastomeric composition comprises in particular a plasticized mixture of liquid polymer (A), resin (B) and optionally plasticizing oil (C) incorporated in said composition by process P comprising The mixing and dispersing step (P1) is followed by a continuous processing step (P2), preferably under high vacuum. Said tires surprisingly exhibit well-known contradictory properties, such as behavior on wet and dry roads, optimal balance of driving and braking on snow at low temperatures.

Description

technical field [0001] The present invention relates to novel elastomeric compositions for tires having excellent grip and braking properties on snow and both wet and dry roads. [0002] These compositions allow the manufacture of both improved winter tires for use in all weather conditions and tires suitable for all seasons, which do not need to be replaced during the seasonal change from winter to summer and vice versa. Background technique [0003] Patents are known concerning tires comprising compositions comprising, inter alia, liquid polymers. [0004] US2007135564 relates to the use of liquid polymers in tread materials to improve wear resistance combined with highly structured carbon black and crosslinked plasticizers to impart good dry braking performance and acceptable winter performance. [0005] US4840988 describes the application of liquid polymers in tread materials to improve grip and reduce performance degradation on snow and ice. [0006] US5851321 describ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00B60C1/00C08K3/04C08K3/36C08K5/01C08L9/00C08L21/00
CPCC08L7/00C08L9/00C08L21/00B60C1/0016C08L9/06B29B7/183B29B7/48B29B7/485B29B7/60B29B7/7461B29B7/7485B29B7/7495B29B7/90B29B7/748C08L91/00
Inventor J·瓦格曼P·德坎切利斯G·拉蒂A·斯库拉蒂P·昆萨尼A·洛斯特里托
Owner PIRELLI TYRE SPA