Patent
Silica reinforced rubber
Carl J. Stacy,Jerold D. Wood +1 more
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TLDR
In this article, a reinforcement promoter was incorporated into the silica prior to drying of the precipitated silica which is precipitated, which resulted in a significant improvement of the heat buildup properties of rubber reinforced by such silica as compared to adding both silica and the promoter to the rubber mixture.Abstract:
Incorporating a reinforcement promoter into the silica prior to the drying of the silica which is precipitated has been found to result in a significant improvement of the heat buildup properties of rubber reinforced by such silica as compared to adding both silica and the promoter to the rubber mixture.read more
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Natural oxidic or silicate filler modified on the surface, a process for its production
TL;DR: In this article, the modification of natural oxidic or silicate fillers with water insoluble sulfur containing organosilicon compounds is described. But the fillers are converted into an aqueous suspension and treated with the organosILicon compounds, in a given case in the presence of an emulsifier.
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Chemically treated fillers and polymeric compositions containing same
TL;DR: In this article, fillers have been described, e.g., inorganic oxides that have been chemically treated to have a carbon content of greater than 1 weight percent, a mercapto content of at least 0.15 weight percent and a Silane conversion index of at most 0.3 and a standard reinforcement index of 4 or more.
Patent
Optically transparent elastomers
William J. Mueller,R.L. Markham +1 more
TL;DR: In this paper, an optically clear combination of EPDM elastomer, fumed silica, coupling agent, antioxidant, at least one and preferably two curing coagents, and preferably an antistatic agent is disclosed.
Patent
Chemically modified fillers and polymeric compositions containing same
TL;DR: In this paper, the authors describe fillers that have been modified to have a carbon content greater than 1 weight percent, a sulfur content of greater than 0.1 weight percent and a Silane Conversion Index of at least 0.3.
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Process for producing chemically modified fillers
TL;DR: In this article, an improved process for producing chemically modified fillers by using a certain combination of functionalizing and hydrophobizing agents in an aqueous suspension of inorganic oxide having a pH of 2.5 or less was described.
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Surface modified pigments and methods for producing same and elastomers containing same
Abstract: A MERCAPTOSILANE GRAFTED INORGANIC PIGMENT SUCH AS KAOLIN CLAY FOR USE AS A REINFORCING FILLER IN ELASTOMERS, PLASTICS, AND THE LIKE IS OBTAINED BY SPRAY DRYING A DISPERSED AQUEOUS SLURRY OF THE PIGMENT IN THE PRESENCE OF A SMALL AMOUNT OF MERCAPTOORGANOSILANE. SMALL AMOUNTS OF MERCAPTOSILANE GRAFTED TO INORGANIC PIGMENTS SUCH AS KAOLIN CLAY SIGNIFICANTLY INCREASE THE REINFORCEMENT OF ELASTOMERS. A BLEND OF MERCAPTOSILANE AND AMINOSILANE GRAFTED TO INORGANIC PIGMENTS SUCH AS KAOLIN CLAY GIVES HIGHER REINFORCEMENT TO ELASTOMERS THAN LIKE AMOUNTS OF EITHER MERCAPTOSILANES OR AMINOSILANES GRAFTED TO THE PIGMENT ALONE.
Patent
Sulfur containing silane coupling agents
TL;DR: Polysulfide aryl silanes, mercapto aryls, the hydrolyzates and condensates thereof, a process for the manufacture of said silanes and their use as coupling agents in vulcanized rubber compounds are discussed in this paper.
Patent
Polymer composite articles containing polysulfide silicon coupling agents
TL;DR: In this article, the reaction product of an organic polymer, an inorganic substrate and a polysulfide silicon coupling agent is used to synthesize thermoplastic composites.
Patent
Silane/filler preparations, process for their production and their use
TL;DR: In this paper, a process for the production of the silane/filler preparation and its use in optionally crosslinkable polymeric molding compositions or vulcanizable or cross-linkable rubber moulding compositions such as sulphur-vulcanizable molding composition based on natural rubber and/or synthetic rubber is described.
Patent
Polymer composite articles containing amino substituted mercapto organo silicon coupling agents
TL;DR: In this article, the reaction product of an organic polymer, an inorganic substrate and an amino substituted mercapto organosilicon coupling agent is used to synthesize thermoplastic composites.