The invention relates to a method to reduce or prevent agglomeration of particles of halogenated rubbers in aqueous media by LCST compounds as well as highly pure halogenated rubbers. The invention further relates to halogenated elastomer products comprising the same or derived therefrom.

Filled polymer compositions and methods of making said filled polymer compositions and shaped articles or products comprising or formed from said polymer compositions.

Filled polymer compositions and methods of making said filled polymer compositions and shaped articles or products comprising or formed from said polymer compositions.

Rubber compounds that comprise rubber and propylene-a-olefin-diene (PE(D)M) polymers may be useful in tire-related articles (e.g., tire sidewalls, inner tubes, and innerliners). Such a rubber compound may comprise: about 5 phr to about 50 phr of the PE(D)M polymer that comprises about 65 wt % to about 99.5 wt % propylene, about 0.5 wt % to about 35 wt % a-olefin that is not propylene, and 0 wt % to about 20 wt % diene, said wt % based on the weight of the PE(D)M polymer, and about 50 parts per hundred parts rubber (phr) to about 95 phr of a rubber that comprises one selected from the group consisting of the halogenated isobutylene-based rubber is selected from the group consisting of: natural rubber, polyisoprene rubber, poly(styrene-co-butadiene) rubber, polybutadiene rubber, poly(isoprene-co-butadiene) rubber, styrene-isoprene-butadiene rubber, butyl rubber, star branched butyl rubber, isobutylene-isoprene rubber, poly(isobutylene-co-alkylstyrene), a halogenated isobutylene-based rubber, polychloroprene rubber, nitrile rubber, and any combination thereof.

To provide a fluorinated copolymer dispersion, whereby it is possible to obtain an article being excellent in water-and-oil repellency and less susceptible to a decrease in the water-and-oil repellency by alkali, etc. and which presents little impact to the environment by an organic solvent; a method for its production; and an article which is excellent in water-and-oil repellency and is less susceptible to a decrease in the water-and-oil repellency by alkali, etc. The fluorinated copolymer dispersion comprises an aqueous medium and a fluorinated copolymer dispersed in the aqueous medium, wherein the fluorinated copolymer has units based on the following monomer (a) and units based on the following monomer (b), the proportion of the units based on the monomer (a) being from 20 to 60 mol % to all units constituting the fluorinated copolymer, and the fluorinated copolymer has a number average molecular weight of from 10,000 to 100,000: Monomer (a): a compound represented by CH.sub.2═CH—R.sup.f (R.sup.f is a C.sub.1-8 perfluoroalkyl group); and Monomer (b): a monomer copolymerizable with the monomer (a).

Provided are a rubber composition for an inner liner having excellent air permeability resistance and low temperature fatigue resistance, and a pneumatic tire using the same. The rubber composition for an inner liner contains 0.05 to 0.9 parts by mass of 1,6-hexamethylene dithiosulfate sodium dihydrate with respect to 100 parts by mass of a rubber component, in which a whole sulfur content is less than 0.3 parts by mass.

Provided are a rubber composition for an inner liner having excellent air permeability resistance and low temperature fatigue resistance, and a pneumatic tire using the same. The rubber composition for an inner liner contains 0.05 to 0.9 parts by mass of 1,6-hexamethylene dithiosulfate sodium dihydrate with respect to 100 parts by mass of a rubber component, in which a whole sulfur content is less than 0.3 parts by mass.

The present invention relates to improvements in a masterbatch which is a compounded concentrated mixture of colorants and/or additives to effect the properties, typically the color, of a target polymer. One aspect of the present invention comprises a polyvinyl chloride (PVC) masterbatch comprising a chlorinated polyolefin having a melt flow index (MFI) characteristic of between 1 and 30 having units of g/10 min at a temperature of 180° C. at a weight of 10 kg; an acrylic processing aid and/or acrylic impact modifier and/or acrylic moulding powder; and at least one dye, pigment and/or functional additive.

There is provided an aqueous coating agent composition that does not contain an organotin compound and forms a coating film having good slipperiness and having excellent adhesiveness (adhesion) and abrasion resistance. The aqueous coating agent composition contains: (A) polydiorganosiloxane having both terminals blocked with hydroxyl groups, the polydiorganosiloxane having a viscosity of 50 to 100,000,000 mPa.Math.s (at 25° C.); (B) polyorganohydrogensiloxane having at least three hydrogen atoms in one molecule; (C) a zinc compound as a curing catalyst; (D) an organic compound and/or polyorganosiloxane having at least one of a primary amino group and a secondary amino group; (E) an adhesion improving component; and (F) spherical particles.

A water-based adhesive film-forming cover composition including: (i) at least one film forming polymer; (ii) at least one lower crystallinity first polynitroso compound; (iii) at least one higher crystallinity second polynitroso compound; (iv) at least one crosslinking agent; and (v) water as a carrier liquid; a bonding system including a combination of: (a) a water-based primer component; and (b) the above water-based cover component; a process for manufacturing the above bonding system; and a process of manufacturing bonded article with the above bonding system. A bonded article, having a bonding line made from the above bonding system disposed between metal and rubber substrates, exhibits excellent stability against an aqueous urea-solution at temperatures of up to about 95° C.