Class / Patent application number | Description | Number of patent applications / Date published |
525105000 | Solid polymer from ethylenic reactants only is derived from plural unsaturated hydrocarbon | 18 |
20080275184 | Comjugated Diene Rubber Composition, Process For Producing The Same And Rubber Vulcanizate - A conjugated diene rubber composition comprising (A) 5-95 wt. % of a conjugated diene rubber having a structure such that at least three conjugated diene polymer chains are bonded together through a specific polyorganosiloxane having groups containing alkylene glycol repeating units and (B) 95-5 wt. % of a conjugated diene rubber having reacted with a compound having in the molecule a functional group selected from >C═O, >C═S, amino, imino, epoxy, pyridyl, alkoxyl and halogeno. This rubber composition gives, when silica is incorporated therein, a vulcanizable rubber composition having good processability and giving a rubber vulcanizate exhibiting sufficiently reduced heat build up, and having good wet-grip property and good abrasion resistance. | 11-06-2008 |
20090111943 | THERMOPLASTIC COMPOSITIONS, METHOD OF MANUFACTURE, AND ARTICLES THEREFROM - A thermoplastic composition comprising, based on the total weight of the thermoplastic composition, from 0.1 to 30 weight percent of an inorganic filler composition comprising an inorganic filler-polyorganosiloxane composite; up to 80 weight percent of a polycarbonate; and from 1 to 25 weight percent of an impact modifier. Methods of preparing the compositions and articles comprising the compositions are described. | 04-30-2009 |
20090131591 | ALKOXYSILANE CROSS-LINKED POLYMERS HAVING IMPROVED ELASTIC RECOVERY PROPERTIES - Moisture curable alkoxysilyl-functional polymers crosslinkable to elastomers having improved recovery properties are prepared by incorporating in the curable composition, both an aminoalkylalkoxysilane and an epoxyalkylalkoxysilane. | 05-21-2009 |
20090203843 | Modified Conjugated Diene Polymer and Process For Producing Thereof - A modified conjugated diene polymer comprises a modifying group based on a low molecular weight compound having two or more tertiary amino groups and one or more alkoxysilyl groups in a molecule which bonds to a conjugated diene polymer obtained by polymerization of a conjugated diene compound or a conjugated diene polymer obtained by copolymerization of a conjugated diene compound and an aromatic vinyl compound. The process for producing the modified conjugated diene polymer comprises the steps of: polymerizing a conjugated diene compound or copolymerizing a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent using an alkali metal initiator and/or an alkaline earth metal initiator; and reacting active terminals of the resulting polymer with a low molecular weight compound having two or more tertiary amino groups and one or more alkoxysilyl groups in the molecule. | 08-13-2009 |
20090203844 | FUNCTIONALIZED POLYMERS AND IMPROVED TIRES THEREFROM - A method of forming a functionalized polymer, the method comprising reacting a living polymer with a compound defined by the formula | 08-13-2009 |
20090221753 | Method of Melt Blending Curable Polymer Compositions Using Silicone Hydrides - Provided in one aspect is a method of melt blending comprising providing an extruder possessing addition points from a zero point to a 100 point the length of the extruder; adding at least one thermoplastic and at least one curable polymer at the zero to 10 point of the extruder; adding at least one silicone hydride at the 5 to 30 point of the extruder; adding at least one metal catalyst at the 20 to 60 point of the extruder, with the proviso that the metal catalyst is added at least 5 points farther down the extruder than the silicone hydride. Provided in another aspect is a hydrosilylation curative composition comprising a silicone hydride having the formula | 09-03-2009 |
20110040037 | RUBBER COMPOSITION AND USES THEREOF - It is an object of the present invention to provide a rubber composition having: excellent sealing properties, heat resistance and acid resistance; a low reaction force, low hardness and low compression set; and excellent low-temperature recovery properties that contribute to sealing properties particularly in low-temperature environment. It is another object of the invention to provide uses of the rubber composition and main bodies on which the rubber composition has been mounted. The rubber composition of the present invention comprises a specific ethylene/α-olefin/non-conjugated polyene copolymer [A], a SiH group-containing compound [B] having two SiH groups in one molecule, and a SiH group-containing compound [C] having three SiH groups in one molecule. | 02-17-2011 |
20110086981 | MANUFACTURING METHOD FOR SURFACE-MODIFIED RUBBER MOLDED BODY - A manufacturing method for a surface-modified rubber molded body is described. An uncross-linked rubber molded body is made of a rubber composition containing an organic peroxide and a modified butyl rubber composition (A) containing a modified butyl rubber (1) where a compound (a) with a stable nitroxide free radical in the molecule at ambient temperature in the presence of oxygen, a radical initiator (b), and a radical polymeric monomer (c) with at least difunctionality are reacted with butyl rubber, or a modified butyl rubber composition (B) where the monomer (c) is added to a modified butyl rubber (2) where the compound (a) and the radical initiator (b) are reacted with butyl rubber. A siloxane compound having a (meth)acryloyl group is applied onto the surface of the uncross-linked rubber molded body. The uncross-linked rubber molded body is then heat-treated. | 04-14-2011 |
20120046415 | METHODS OF FORMING BLOCK COPOLYMERS, METHODS OF FORMING A SELF-ASSEMBLED BLOCK COPOLYMER STRUCTURE AND RELATED COMPOSITIONS - Methods of modifying block copolymers to enhance thermodynamic properties thereof without sacrificing material properties and methods of forming modified block copolymers having desired properties are disclosed. The modified block copolymers may be used, for example, as a mask for sublithographic patterning during various stages of semiconductor device fabrication. For example, block copolymers having desirable material properties, such as etch selectively, may be chemically modified to tailor a χ value thereof to optimize the process conditions for achieving a self-assembled state and to reduce a defectivity of the self-assembled block copolymer pattern. | 02-23-2012 |
20120172528 | TERMINAL-MODIFIED CONJUGATED DIENE-VINYL AROMATIC COPOLYMER AND METHOD FOR MANUFACTURING THE SAME - The invention discloses a terminal-modified conjugated diene-vinyl aromatic copolymer and a method for manufacturing the same. The method comprises the following steps. An organic alkali metal initiator is added into a first mixture containing a conjugated diene monomer and a vinyl aromatic hydrocarbon monomer to perform reaction to obtain a conjugated diene-vinyl aromatic copolymer with active terminal. The conjugated diene-vinyl aromatic copolymer with active terminal reacts with polysiloxane to obtain a terminal-modified conjugated diene-vinyl aromatic copolymer. The aforementioned polysiloxane is expressed as chemical formula (I): | 07-05-2012 |
20130035443 | METHOD OF MAKING A BLOCKED POLYMER WITH A SILOXANE LINKING GROUP - Carbanionic polymer chains that contain polyene mer can be provided with a block derived from one or more ethylenically unsaturated functional monomers after being reacted to include, at their respective termini, one or more, although preferably one, unit that is the radical of a cyclic compound, the ring structure of the cyclic compound comprising silicon atoms alternating with O, S or N atoms. | 02-07-2013 |
20130046059 | USE OF POLYORGANOSILOXANES IN THE PROCESSING AND VULCANISATION OF RUBBER - The invention relates to the use of polyorganosiloxanes having 3 or more siloxane units, which have one or more organic fractions R | 02-21-2013 |
20130237666 | Process for the Preparation of a 1,3-Butadiene and Styrene Copolymer Containing a Random Section in its Main Chain Followed by a Block with a Structure Differentiated from the Main Chain, Hompolymeric or Copolymeric, Functionalized and the Product Obtained From This - This invention refers to a process for the preparation of a 1,3-butadiene and styrene copolymer, containing a random section in its main chain, followed by a block with a structure differentiated from the main chain, homopolymeric or copolymeric, functionalized, and the product obtained from this. | 09-12-2013 |
20140088256 | METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE-BASED POLYMER, AND METHOD FOR PRODUCING POLYMER COMPOSITION - The present invention relates to a method for producing a modified conjugated diene-based polymer, the method comprising a step of reacting a conjugated diene-based polymer with an organometallic compound, and a step of reacting the resulting product and an epoxy compound. | 03-27-2014 |
20150299464 | COMPOSITION FOR ENCAPSULANT, ENCAPSULANT, AND ELECTRONIC ELEMENT - Disclosed are a composition for an encapsulant that includes a first polysiloxane including a moiety represented by Chemical Formula 1 and an alkenyl group bound to silicon (Si—Vi) at the terminal end and a second polysiloxane including hydrogen bound to silicon (Si—H) at the terminal end, an encapsulant obtained by curing the composition for an encapsulant, and an electronic element including the encapsulant. | 10-22-2015 |
20150315438 | NOVEL SILICON-CONTAINING COMPOUND HAVING ALKOXYSILYL-ETHYLENE GROUP AT ITS TERMINAL, ROOM TEMPERATURE-CURABLE ORGANOPOLYSILOXANE COMPOSITION, AND MOLDED PRODUCT OBTAINED BY CURING THE COMPOSITION - A silicon-containing compound having an alkoxysilyl-ethylene group at its terminal including at least one silyl-ethylene bond represented by the following structural formula (a) in one molecule, and according to this compound, a novel base polymer used in a room temperature-curable polyorganosiloxane composition capable of providing a cured product that is particularly excellent in rapid curability, storage stability and durability can be provided. | 11-05-2015 |
20160145423 | RUBBER-SILICA COMPOSITE AND METHOD FOR PRODUCING SAME, AND RUBBER COMPOSITION AND PNEUMATIC TIRE - Acido-basic properties of a system containing a polymer fragment obtained by oxidative cleavage of a carbon-carbon double bond of a diene rubber polymer and a functional molecule having in a structure thereof an alkoxysilyl group and at least one functional group selected from the group consisting of an aldehyde group and a carbonyl group are changed such that the system becomes basic when acidic, and becomes acidic when basic, thereby combining the polymer fragment with the functional molecule to form a modified diene rubber polymer having an alkoxysilyl group incorporated therein. A silane monomer comprising tetraalkoxysilane and/or alkyl trialkoxysilane is added to the system containing the modified diene rubber polymer, followed by condensation polymerization, thereby forming silica. | 05-26-2016 |
20160186022 | METATHESIS-ACTIVE ADHESION AGENTS AND METHODS FOR ENHANCING POLYMER ADHESION TO SURFACES - The invention discloses an adhesion agent composition comprising at least one C | 06-30-2016 |