Abstract:
The present invention relates to a pneumatic rubber tire having an integral innerliner of a sulfur cured rubber compound. The rubber compound is characterized by, based on 100 parts of ruber, (A) from about 70 to 98 parts by weight of bromobutyl rubber, (B) from 2 to 30 parts by weight of a trans 1,4-polybutadiene rubber having at least a 65 percent trans 1,4-content; and (C) from 0 to 28 parts by weight of a rubber selected from the group consisting of an acrylonitrile/butadiene copolymer, styrene/butadiene copolymer, natural rubber and mixtures thereof.
Abstract:
The present invention relates to a silica reinforced rubber composition and to pneumatic tires having treads comprised of the silica reinforced rubber compositions.The silica reinforced rubber composition comprises at least one elastomer, silica, a silica coupler, a hydrophobating agent and, optionally, carbon black.
Abstract:
A wear indicator strip for a pneumatic tire having a multiply carcass, such as a military aircraft tire, is located preferably between the two radially outermost carcass plies. The wear indicator strip is of a contrasting color and comprises and elastomeric compound of natural or polyisoprene rubber reinforced with silica.
Abstract:
The present invention relates to a silica reinforced rubber composition and to pneumatic tires having treads comprised of the silica reinforced rubber compositions. The silica reinforced rubber composition comprises at least one elastomer, silica, a silica coupler, a hydrophobating agent and, optionally, carbon black.
Abstract:
The present invention relates to rosinate esters of N-hydroxyphenyl maleamic acid which are useful as a total or partial replacement for extender or processing oil in rubber formulations. Addition of these rosinate esters improve the modulus and tear of the vulcanizate. The rosinate esters of N-hydroxyphenyl maleamic acid are of the formula: ##STR1##
Abstract translation:本发明涉及N-羟基苯基马来酰胺酸的松脂酸酯,其可用作橡胶制剂中的增量剂或加工油的全部或部分替代物。 这些松脂酸酯的添加改善了硫化橡胶的模量和撕裂。 N-羟基苯基马来酰胺酸的松脂酸酯具有下式: I或 II