Patent classifications
C08J2409/02
Resin composition suitable for rigid-flex board and use thereof
The disclosure relates to a resin composition, comprising an epoxy resin, a high molecular weight polyetheramine and an amine-terminated acrylonitrile rubber. Various products can be made from the resin composition, such as prepregs, laminates, printed circuit boards or rigid-flex boards, in which one, multiple or all of the following properties can be met: low resin flow, low dust weight loss, high peel strength at room temperature and at high temperature, low moisture absorption rate, and better varnish stability.
HYDROPHILIC POLYMER COATINGS WITH DURABLE LUBRICITY AND COMPOSITIONS AND METHODS THEREOF
The invention provides a novel hydrophilic polymer and latex polymer blend coating formulation and compositions thereof, and their use on various devices (e.g., prophylactic and medical devices) to form hydrophilic and flexible coatings with durable lubricity.
HYDROPHILIC POLYMER COATINGS WITH DURABLE LUBRICITY AND COMPOSITIONS AND METHODS THEREOF
The invention provides a novel hydrophilic polymer and latex polymer blend coating formulation and compositions thereof, and their use on various devices (e.g., prophylactic and medical devices) to form hydrophilic and flexible coatings with durable lubricity.
RESIN COMPOSITION AND ARTICLE MADE THEREFROM
A resin composition comprises 100 parts by weight of epoxy resin; 2 to 50 parts by weight of carboxyl-containing butadiene acrylonitrile resin; 1 to 40 parts by weight of phosphazene; and 1 to 8 parts by weight of acrylic triblock copolymer. The resin composition may be made into various articles, such as prepregs, laminates, printed circuit boards or rigid-flex boards, and meets one, more or all of the following properties: high yield rate in solder pad fall-off test at high temperature, low dust weight loss, low stickiness, high thermal resistance, high peel strength to copper foil, and high bonding strength to polyimide layer.
Thin organic solvent resistant glove
A thin organic solvent resistant glove (100) is disclosed including: a first polymeric layer (202) in a shape of a glove including at least one of a blend of a polyisobutylene material and a nitrile-butadiene material, or a nitrile-butadiene material; a second polymeric layer (206) in a shape of a glove including at least one of a polyisobutylene material or a blend of a polyisobutylene material and a nitrile-butadiene material, disposed on the first polymeric layer, and a third polymeric layer (212) in a shape of a glove including a nitrile-butadiene material or an acrylic polymer material disposed on the second polymeric layer.
Electrically conductive rubber composition, transfer roller, production method for the transfer roller, and image forming apparatus
An electrically conductive rubber composition is provided, which is usable for production of a transfer roller of a highly flexible foam satisfying requirements for cost reduction and weight reduction and having smaller foam cell diameters and, hence, ensuring higher-quality image formation with smaller environment-dependent variations in roller resistance. A transfer roller produced from the electrically conductive rubber composition, a production method for the transfer roller, and an image forming apparatus including the transfer roller are also provided. The electrically conductive rubber composition contains a rubber component including SBR and/or BR, EPDM and epichlorohydrin rubber, a crosslinking component, and 4 to 6 parts by mass of a foaming agent and 1.5 to 2.7 parts by mass of a foaming assisting agent based on 100 parts by mass of the rubber component. The transfer roller (1) is produced by extruding the electrically conductive rubber composition into a tubular body and performing an in-can vulcanization process on the tubular body. The image forming apparatus incorporates the transfer roller.
Electrically conductive rubber composition, transfer roller, and image forming apparatus
An inventive electrically conductive rubber composition contains: a rubber component including SBR and/or NBR, and 20 to 30 parts by mass of epichlorohydrin rubber based on 100 parts by mass of the overall rubber component; a crosslinking component; a foaming component; and a potassium salt of an anion having a fluoro group and a sulfonyl group in its molecule, the potassium salt being present in a proportion of not less than 0.01 part by mass and not greater than 1 part by mass based on 100 parts by mass of the overall rubber component. An inventive transfer roller (1) includes a roller body (2) formed from the electrically conductive rubber composition.
Hydrophilic polymer coatings with durable lubricity and compositions and methods thereof
The invention provides a novel hydrophilic polymer and latex polymer blend coating formulation and compositions thereof, and their use on various devices (e.g., prophylactic and medical devices) to form hydrophilic and flexible coatings with durable lubricity.
THERMOSETTING EPOXY RESIN COMPOSITIONS USEFUL AS STRUCTURAL REINFORCEMENT OR STRUCTURAL FOAM
Thermosetting epoxy resin compositions on the one hand at room temperature in the incompletely cured state exhibit extremely slight alteration in shape and on the other hand develop a high surface tack, and, moreover, in the fully cured state are of high impact strength and at the same time exhibits high adhesion, particularly to metallic substrates. These compositions are ideally suited to the production of self-adhesive reinforcing elements.
Chemical and gas-resistant, high-pressure, large-bore bonded flexible rubber pipe and method for producing the same
A high-pressure, large-bore bonded flexible rubber pipe resistant to aggressive chemicals and gases, particularly for conveying gas or oil, the flexible pipe having a liner made of poly(vinylidene-fluoride) homopolymer or copolymer wherein a hydrogenated nitrile rubber-based, peroxide-vulcanized rubber compound 2 is bonded to the poly(vinylidene-fluoride) liner, which has a Mooney 05, 150 C. scorch time of at least 10 minutes. Further, a method for manufacturing such hoses, the method including vulcanization performed at a temperature of at least 160 C.