摘要:
Sulfur-containing silane coupling agents, and organic polymers containing carbon-carbon double bonds. These silanes can be carried on organic and inorganic fillers. The invention also relates to tire compositions and articles of manufacture, particularly tires, made from the elastomer compositions described herein.
摘要:
Sulfur-containing silane coupling agents, and organic polymers containing carbon-carbon double bonds. These silanes can be carried on organic and inorganic fillers. The invention also relates to tire compositions and articles of manufacture, particularly tires, made from elastomer compositions.
摘要:
Free-flowing filler compositions containing sulfur-containing silane coupling agents, and a tire composition containing the filler composition, for use in the manufacture of tires.
摘要:
Sulfur silane coupling agents for use in tire compositions used to formulate tires or tire components which contain multiple blocked mercapto groups which are in a state of reduced activity until activated. The coupling agents are advantageously used in rubber formulations, including tire compositions, for example, for fabricating tires with low rolling resistance.
摘要:
A composition of matter is disclosed that comprises at least one silane coupling agent for coupling an elastomer and a filler wherein said silane comprises at least one hydrolysable group that, upon compounding said silane with said elastomer and filler, is released to yield a compound that improves downstream processability of the compounded composition or the properties of the final rubber product or both.
摘要:
Silane compositions of the general formula are provided herein comprising [(RO)x(R1)(3-x)—Si-Mt]q-L-[(Ra)cAr—(CR2═CR22)y]z wherein R and R1 are independently a hydrocarbon group of from 1 to about 20 carbon atoms; R2 are each independently hydrogen or a hydrocarbon group of from 1 to about 20 carbon atoms; M optionally is a divalent hydrocarbon connecting group of from 1 to about 20 carbon atoms to link the silicon atom and the L group; L is a covalently bound hydrocarbon linking group of from 1 to about 20 carbon atoms or a heteroatom linking group selected from the group consisting of —O—, —S—, —NR3— wherein R3 is hydrogen or a hydrocarbon group of from 1 to about 20 carbon atoms; Ra is an alkyl group of 1 to 12 carbon atoms; Ar is a substituted or unsubstituted aromatic group; q is an integer of 1 to 4; t and c are each independently 0 or 1; and x, y and z are each independently integers of 1 to 3, inclusive, with the proviso that t is 1 when L is a heteroatom group. Also provided are processes for preparing the silane compositions and rubber composition comprising the silane compositions.
摘要翻译:本文提供的硅烷组合物包括<?in-line-formula description =“In-line Formulas”end =“lead”?> [(RO)x(R1)(3-x)-Si-Mt] qL- [(Ra)cAr-(CR2-CR22)y] z <βin-line-formula description =“In-line Formulas”end =“tail”?>其中R和R 1独立地为1 至约20个碳原子; R 2各自独立地为氢或1〜约20个碳原子的烃基; M任选是1至约20个碳原子的连接硅原子和L基团的二价烃连接基团; L是共价键合的1至约20个碳原子的烃连接基团或选自-O - , - S - , - NR 3 - 的杂原子连接基团,其中R 3是氢或1〜 约20个碳原子; Ra是1〜12个碳原子的烷基; Ar是取代或未取代的芳基; q为1〜4的整数, t和c各自独立地为0或1; 并且x,y和z各自独立地为1〜3的整数,条件是当L为杂原子基团时,t为1。 还提供了制备包含硅烷组合物的硅烷组合物和橡胶组合物的方法。
摘要:
A blocked mercaptosilane of the structure: G-C(═O)—S—CH2CH2CH2SiX3 is disclosed wherein each X is an independently selected RO— group or R— group wherein each R is independently selected from the group consisting of hydrogen, alkyl that may or may not contain unsaturation, alkenyl groups, aryl groups, and aralkyl groups, such moieties other than hydrogen having from 1 to 18 carbon atoms, at least one X is RO—, and G is a monovalent alkyl group.
摘要翻译:具有以下结构的封端巯基硅烷:GC(-O)-S-CH 2 CH 2 CH 2 SiX 3 SUB >,其中每个X是独立选择的RO-基团或R-基团,其中每个R独立地选自氢,可以含有或可以不含有不饱和键的烷基,烯基,芳基和芳烷基,例如 具有1至18个碳原子的氢以外的部分,至少一个X为RO-,G为一价烷基。
摘要:
A composition of matter is disclosed wherein the composition comprises: A) at least one latent mercaptosilane coupling agent; and B) at least one additional mercaptan. Preferably, the composition comprises: A) at least one sulfur vulcanizable rubber; B) at least one latent mercaptosilane coupling agent; C) at least one latent mercaptosilane activator; D) at least one filler; and, optionally, E) at least one additional mercaptosilane. A two pass process for preparing cured articles, such as tires and/or tire treads, which employs the composition is also disclosed.
摘要:
An improvement on existing methods to desulfurize oligosulfide silanes generates no added raw materials or waste streams in addition to the sodium chloride which is generated as a byproduct in the current manufacturing process for polyusulfide silanes. This is accomplished by using mercaptosilane salts as desulfurizing agents, which yield more product in addition to that already obtained from the desulfurized silane of higher sulfur rank. The process simply entails reacting an oligosulfide silane with a mercaptosilane salt to thereby obtain an oligosulfide silane whose average sulfur rank is less than the starting oligosulfide silane. Coproduct sulfide salts can be recycled back to the oligosulfide manufacturing process. The mercaptosilane salts are novel materials as well.