Rubber composition, rubber roller, and image forming apparatus

    公开(公告)号:US10683410B2

    公开(公告)日:2020-06-16

    申请号:US16172891

    申请日:2018-10-29

    摘要: A rubber composition capable of forming a foam such as a roller main body which has a low rubber hardness and is soft in a state in which an average cell diameter thereof is small is provided. The rubber composition includes NBR whose Mooney viscosity is 15 to 50 having a proportion being 10 parts by mass or more in 100 parts by mass of the total amount of rubber, epichlorohydrin rubber whose Mooney viscosity is 5 to 35 having a proportion being 10 parts by mass or more in 100 parts by mass of the total amount of rubber, and 10 parts by mass or less of carbon black and 7 parts by mass or less of a foaming agent with respect to 100 parts by mass of the total amount of rubber, and has a Mooney viscosity of 35 or less.

    Resin composition and article made therefrom

    公开(公告)号:US10577497B2

    公开(公告)日:2020-03-03

    申请号:US16196472

    申请日:2018-11-20

    摘要: 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.

    Dissolvable rubber
    35.
    发明授权

    公开(公告)号:US10544304B2

    公开(公告)日:2020-01-28

    申请号:US16365003

    申请日:2019-03-26

    申请人: Terves Inc.

    摘要: A degradable elastomeric material that is formed from a composite blend of elastomeric particles in a continuous degradable binder. The degradable binder is generally a water-soluble binder which has a temperature dependent solubility in water and brine systems. Such degradable elastomers are particularly useful in the fabrication of degradable oil tools, among other applications.

    RUBBER COMPOSITION FOR HOSE, AND HOSE
    36.
    发明申请

    公开(公告)号:US20190352488A1

    公开(公告)日:2019-11-21

    申请号:US16463478

    申请日:2017-10-31

    发明人: Munenori IIZUKA

    摘要: The present invention provides a rubber composition for a hose, the rubber composition including acrylonitrile-butadiene rubber (NBR) as one rubber component, wherein the rubber composition for a hose is characterized in that said NBR component includes acrylonitrile-butadiene rubber having a weight-average molecular weight (Mw) of 280,000 or higher (specific high-molecular-weight NBR), said acrylonitrile-butadiene rubber (specific high-molecular-weight NBR) accounts for at least 60% by mass of the rubber component, and the acrylonitrile content included in the rubber component is 25-32% by mass. It is possible to provide a rubber composition that has improved toughness at high temperatures and exceptional heat resistance, oil resistance, and kink resistance, and that can be used especially suitably as the inner rubber of a hydraulic hose.

    THERMOPLASTIC ELASTOMER COMPOSITION OF AN ELASTOMER AND A NON-ELASTOMERIC POLYOLEFIN WHICH IS FUNCTIONALIZED WITH AN ANHYDRIDE OF AN ORGANIC CARBOXYLIC ACID

    公开(公告)号:US20190330458A1

    公开(公告)日:2019-10-31

    申请号:US16440293

    申请日:2019-06-13

    发明人: Frieder Vielsack

    摘要: A thermoplastic elastomer composition is disclosed that includes an elastomer and a non-elastomeric polyolefin, which is functionalized with an anhydride of an organic carboxylic acid. Furthermore, the use of a mixture of an elastomer and a cross-linking agent for the elastomer for producing a thermoplastic elastomer composition are disclose. A further subject of the invention is the use of a non-elastomeric polyolefin which is functionalized with an anhydride of an organic carboxylic acid for producing a thermoplastic elastomer composition according to the invention. In addition, the invention relates to the use of a thermoplastic elastomer composition according to the invention for producing an article/composite material with a polyamide. The invention also relates to a process for producing a thermoplastic elastomer composition according to the invention as well as a composite material made of the thermoplastic elastomer composition according to the invention with a polyamide.

    Blends of thermoplastic polyurethanes and rubbers and process for producing same

    公开(公告)号:US10450445B2

    公开(公告)日:2019-10-22

    申请号:US14916375

    申请日:2014-08-28

    摘要: The invention relates to the field of chemistry and to the blends that can by way of example be used for rolls and roll coverings in the printing, textile, paper and graphic industry. The problem addressed by the present invention is provision of blends that have improved physical properties, and of a simple low-cost process with low energy consumption for producing same. The problem is solved via blends of thermoplastic polyurethanes and rubbers, consisting of rubber and from 5 to 80% by weight of thermoplastic polyurethanes, where the materials intermesh with one another in the regions of contact between rubber and polyurethanes. The problem is further solved via a process in which at least one rubber and from 5 to 80% by weight of polyurethane precursors are mixed and homogenized, where the precursors are prepolymers made of polyisocyanate(s) and of macroglyeol(s) and at least one chain extender, and/or monomers of polyisocyanates, of macroglycols and of chain extenders.