Patent classifications
C08L93/00
RESIN-EXTENDED RUBBER AND PROCESS FOR PREPARING
Disclosed herein are processes for preparing a resin-extended rubber by mixing at least one thermoplastic resin with a resin-rubber-solvent cement comprising at least one conjugated diene monomer-containing rubber and the resin-extended rubber resulting from such processes. Also disclosed is a resin-extended rubber-solvent-cement comprising at least one conjugated diene monomer-containing rubber, at least one non-polar solvent, and at least one thermoplastic resin as well as a rubber composition comprising a resin-extended rubber.
RESIN-EXTENDED RUBBER AND PROCESS FOR PREPARING
Disclosed herein are processes for preparing a resin-extended rubber by mixing at least one thermoplastic resin with a resin-rubber-solvent cement comprising at least one conjugated diene monomer-containing rubber and the resin-extended rubber resulting from such processes. Also disclosed is a resin-extended rubber-solvent-cement comprising at least one conjugated diene monomer-containing rubber, at least one non-polar solvent, and at least one thermoplastic resin as well as a rubber composition comprising a resin-extended rubber.
DAMPING MATERIAL AND DAMPING SHEET MADE THEREFROM
The present invention provides a damping material and a damping sheet made therefrom. Specifically, the present invention provides a damping material comprising 10-50 wt % of a block copolymer elastomer; 5-40 wt % of a specific-length fiber; 5-45 wt % of a thermoplastic non-elastomeric polymer; 5-50 wt % of a tackifier; 0-50 wt % of an inorganic filler; and 0-30 wt % of a flame retardant based on the total weight of the damping material. The damping material and the damping sheet made therefrom according to the present invention have high damping properties, a wide application temperature range and a low density, and can serve as a novel damping material in the current automobile, rail transit, construction and electrical appliance industries.
DAMPING MATERIAL AND DAMPING SHEET MADE THEREFROM
The present invention provides a damping material and a damping sheet made therefrom. Specifically, the present invention provides a damping material comprising 10-50 wt % of a block copolymer elastomer; 5-40 wt % of a specific-length fiber; 5-45 wt % of a thermoplastic non-elastomeric polymer; 5-50 wt % of a tackifier; 0-50 wt % of an inorganic filler; and 0-30 wt % of a flame retardant based on the total weight of the damping material. The damping material and the damping sheet made therefrom according to the present invention have high damping properties, a wide application temperature range and a low density, and can serve as a novel damping material in the current automobile, rail transit, construction and electrical appliance industries.
Aliphatic-aromatic biodegradable polyester
Disclosed are aliphatic-aromatic biodegradable polyesters obtained from aliphatic dicarboxylic acids comprising azelaic acid, sebacic acid, suberic acid, brassylic acid and their esters; polyfunctional aromatic acids of renewable origin and particularly 2,5-furan dicarboxylic acid, and diols, such as 1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-haxanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol, 1,10-decanediol, 1,11-undecanediol, 1,12-dodecanediol, 1,13-tridecanediol, 1,4-cyclohexanedimethanol, propylene glycol, neopentyl glycol, 2-methyl-1,3-propanediol, dianhydrosorbitol, dianhydromannitol, dianhydroiditol, cyclohexanediol, cyclohexane-methanediol, aromatic diols such as phenols, and furan diol. Also disclosed are blends of the polyesters with other biodegradable polymers of either natural or synthetic origin. The polyesters have properties and viscosity values that make them suitable, after adjusting their molecular weight, for use in numerous practical applications such as films, injection molded products, extrusion coatings, fibers, foams, thermoformed products, extruded profiles and sheets, extrusion blow molding, injection blow molding, rotomolding, stretch blow molding.
Aliphatic-aromatic biodegradable polyester
Disclosed are aliphatic-aromatic biodegradable polyesters obtained from aliphatic dicarboxylic acids comprising azelaic acid, sebacic acid, suberic acid, brassylic acid and their esters; polyfunctional aromatic acids of renewable origin and particularly 2,5-furan dicarboxylic acid, and diols, such as 1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-haxanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol, 1,10-decanediol, 1,11-undecanediol, 1,12-dodecanediol, 1,13-tridecanediol, 1,4-cyclohexanedimethanol, propylene glycol, neopentyl glycol, 2-methyl-1,3-propanediol, dianhydrosorbitol, dianhydromannitol, dianhydroiditol, cyclohexanediol, cyclohexane-methanediol, aromatic diols such as phenols, and furan diol. Also disclosed are blends of the polyesters with other biodegradable polymers of either natural or synthetic origin. The polyesters have properties and viscosity values that make them suitable, after adjusting their molecular weight, for use in numerous practical applications such as films, injection molded products, extrusion coatings, fibers, foams, thermoformed products, extruded profiles and sheets, extrusion blow molding, injection blow molding, rotomolding, stretch blow molding.
ADHESION PROMOTING COMPOSITIONS AND METHOD OF IMPROVING FUEL RESISTANCE OF A COATED ARTICLE
The present invention is directed to film-forming compositions comprising: a) a non-chlorinated, linear polyolefin polymer comprising 0.5 to 10 percent by weight residues of an ethylenically unsaturated anhydride or acid; b) an aminoplast; and c) a component comprising: i) at least one non-chlorinated hydrocarbon having at least 18 carbon atoms and optionally aromatic groups and/or oxygen heteroatoms; and/or ii) an alkyd resin. The present invention is also drawn to methods of improving fuel resistance of a coated article, comprising: (1) applying the film-forming composition to a substrate to form a coated substrate; (2) optionally subjecting the coated substrate to a temperature for a time sufficient to cure the film-forming composition; (3) applying at least one curable film-forming composition to the coated substrate to form a multi-layer coated substrate; and (4) subjecting the multi-layer coated substrate to a temperature and for a time sufficient to cure all of the film-forming compositions.
ADHESION PROMOTING COMPOSITIONS AND METHOD OF IMPROVING FUEL RESISTANCE OF A COATED ARTICLE
The present invention is directed to film-forming compositions comprising: a) a non-chlorinated, linear polyolefin polymer comprising 0.5 to 10 percent by weight residues of an ethylenically unsaturated anhydride or acid; b) an aminoplast; and c) a component comprising: i) at least one non-chlorinated hydrocarbon having at least 18 carbon atoms and optionally aromatic groups and/or oxygen heteroatoms; and/or ii) an alkyd resin. The present invention is also drawn to methods of improving fuel resistance of a coated article, comprising: (1) applying the film-forming composition to a substrate to form a coated substrate; (2) optionally subjecting the coated substrate to a temperature for a time sufficient to cure the film-forming composition; (3) applying at least one curable film-forming composition to the coated substrate to form a multi-layer coated substrate; and (4) subjecting the multi-layer coated substrate to a temperature and for a time sufficient to cure all of the film-forming compositions.
RECYCLABLE FILM FOR THERMOFORMING
Recyclable films having a first layer containing a polyethylene, a second layer containing a high-density polyethylene and a hydrocarbon resin, and a third layer containing a polyethylene may be used for thermoforming packaging components. Both the first and third layers have an overall density between about 0.92 g/cm.sub.3 and 0.97 g/cm.sub.3. The film structure is advantageous as it can be more easily thermoformed than traditional high-density polyethylene films and can maintain the shape taken during thermoforming, exhibiting minimal warping or shrinking.
RECYCLABLE FILM FOR THERMOFORMING
Recyclable films having a first layer containing a polyethylene, a second layer containing a high-density polyethylene and a hydrocarbon resin, and a third layer containing a polyethylene may be used for thermoforming packaging components. Both the first and third layers have an overall density between about 0.92 g/cm.sub.3 and 0.97 g/cm.sub.3. The film structure is advantageous as it can be more easily thermoformed than traditional high-density polyethylene films and can maintain the shape taken during thermoforming, exhibiting minimal warping or shrinking.