C08K2003/222

Sulfone polymer composition

The invention pertains to a polymer composition possessing improved resistance towards degradation and discolouring phenomena induced by UV radiation, said composition comprising at least one aromatic sulfone polymer; at least one organic UV absorber and at least one basic compound selected from the group consisting of (i) basic oxides and hydroxides of divalent metals and (ii) salts of a weak acid, and to methods for its manufacture and to shaped articles obtained therefrom.

Polymer composition comprising basic additive, process and articles comprising said polymer composition
11352716 · 2022-06-07 · ·

The present invention relates to polymer compositions comprising at least one basic additive, and processes comprising at least one process step to obtain the polymer composition or articles comprising the polymer composition. The polymer composition generally displays an enhanced biodegradability.

Resin composition and use of same

A resin composition comprises: a modified EVOH (A) that is represented by a following formula (I), has contents (mol %) of a, b, and c based on the total monomer units satisfying following formulae (1) through (3), and has a degree of saponification (DS) defined by a following formula (4) of 90 mol % or more; and inorganic oxide particles (B), wherein a content of the inorganic oxide particles (B) is from 5 to 5000 ppm. Such a resin composition is improved in adhesion to a resin other than EVOH, secondary processability, and flexibility without decreasing the performances originally possessed by EVOH, such as gas barrier properties, transparency, flavor retention, solvent resistance, and oil resistance. Accordingly, the resin is preferably used as a molded article, a film, a sheet, a heat shrinkable film, a thermoformed article, a multilayer structure, a coinjection stretch blow molded container, a fuel container, and the like. ##STR00001##
18≤a≤55  (1)
0.01≤c≤20  (2)
[100−(a+c)]×0.9≤b≤[100−(a+c)]  (3)
DS=[(Total Number of Moles of Hydrogen Atoms in X,Y, and Z)/(Total Number of Moles of X,Y, and Z)]×100  (4).

Propylene-based polymer compositions with excellent flexibility and hot air weldability

A composition comprising the following components: A) an olefin multi-block copolymer that has a I2 ≤30 g/10 min; B) a propylene-based composition comprising the following: a) a propylene-based polymer; b) a propylene/alpha-olefin interpolymer, a propylene/ethylene interpolymer, or an ethylene/alpha-olefin interpolymer; wherein the propylene-based composition has a Tm.sub.h (highest melting point) ≥130° C.

Propylene-based polymer compositions with excellent flexibility and hot air weldability

A composition comprising the following components: A) an olefin multi-block copolymer that has a I2 ≤30 g/10 min; B) a propylene-based composition comprising the following: a) a propylene-based polymer; b) a propylene/alpha-olefin interpolymer, a propylene/ethylene interpolymer, or an ethylene/alpha-olefin interpolymer; wherein the propylene-based composition has a Tm.sub.h (highest melting point) ≥130° C.

Crosslinking agent, polymer composition containing crosslinking agent, and crosslinked product of same
11339271 · 2022-05-24 · ·

A crosslinking agent which is based on an aluminate complex salt of a hydroxyl group-containing organic compound, which crosslinks a carboxy group and a nitrile group. When the crosslinking agent is added to a carboxy group-denatured NBR latex, gloves having flexibility and a strength comparable to those of natural rubber gloves can be manufactured. Furthermore, the excellent creep resistance is a big characteristic. Moreover, unlike normal sulfur vulcanization gloves, the gloves do not contain sulfur and a vulcanization accelerator, and do not necessarily require addition of zinc oxide.

Chromate free pretreatment primer

A coating comprising epoxy functional resin, corrosion resistant particles, and a multi-functional crosslinker are disclosed as are methods of using such a coating to coat at least a portion of a substrate and a substrate coated thereby.

Composition for coating friction surfaces

The present invention relates to a general field of machine building and provides a composition for coating friction surfaces usable for coating friction surfaces to de-crease wear and to reduce the friction coefficient. Also uses of the composition are within the scope of the present invention.

THERMALLY CONDUCTIVE COMPOSITION AND METHOD FOR PRODUCING THE SAME
20220145015 · 2022-05-12 ·

A thermally conductive composition contains a base polymer, an adhesive polymer, and thermally conductive particles. A thermal conductivity of the thermally conductive composition is 0.3 W/m.Math.K or more. The thermally conductive particles include inorganic particles (a) with a specific surface area of 1 m.sup.2/g or less. The inorganic particles (a) are coated with the adhesive polymer. The production method includes a first mixing process of mixing the adhesive polymer and the inorganic particles (a) with a specific surface area of 1 m.sup.2/g or less so that the inorganic particles (a) are coated with the adhesive polymer, a second mixing process of adding and mixing the base polymer; and a curing process. Thus, the present invention provides a thermally conductive composition that has high thermal conductive properties, a high compression repulsive force, and less interfacial debonding resulting from stress, and a method for producing the thermally conductive composition.

Silicon-containing halogenated elastomers

Described herein is curable composition comprising a halogenated amorphous polymer having at least 25% halogen by weight; at least 0.5 phr of an acid acceptor; at least 0.01 phr of silicon-containing compound; and a dehydrohalogenation cure system. Upon curing, a silicon-containing superficial layer forms, which can provide increased durability, non-tackiness, and a matte finish to the cured elastomer.