C08G2170/00

PERFLUOROPHENYL AZIDE-CONTAINING SILOXANE OLIGOMER MIXTURES

A perfluorophenyl azide containing siloxane oligomer mixture along with products made therefrom, uses for the same, methods for preparing and methods for curing the same.

Bio-based Epoxy Coating Compositions and Methods of Preparation Thereof
20230073852 · 2023-03-09 · ·

The disclosure relates to epoxy-based compositions comprising a decarboxylated rosin acid (DCR) component, suitable as an efficient plasticizer. It further improves hardness, elasticity, UV exposure viability properties of the paint and coating compositions. The DCR increases the bio-based renewable material content of a coating formulation and provide solutions for phthalate-free products. The DCR has a density of 0.9 to 1.0 g/cm.sup.3, a flash point of 135 to 175° C., an acid value of < 50 mg KOH/g, measured according to ASTM D465, and a viscosity of 15 to 60 cSt at 40° C., measured according to ASTM D-445.

Curable polyfarnesene-based compositions

A polymer having a hydrophobic polymer chain derived from monomers of farnesene and other optional monomers, such as dienes and vinyl aromatics. The polymer also includes one or more terminal functional groups, such as an amino group, a glycidyl group, a carboxylic acid group, a (meth)acrylate group, a silane group, an isocyanate group, an acetoacetate group, a phenolic group, and a hydroxyl group. Functional groups, such as carboxylic acids, may also be grafted along the hydrophobic polymer chain. The polymer may be incorporated in curable compositions that optionally include one or more polymer resins having similar functional groups. Methods for preparing the curable polymer compositions are also provided. The curable or cured form of the polymer composition may be used in various products, such as a sealant, a coating, a caulk, an electric potting compound, a membrane, a sponge, a foam, an adhesive, or a propellant binder.

Compositions systems and methods for conferring durable shaping of keratinous fibers
11633345 · 2023-04-25 · ·

Cosmetic compositions, systems and methods for conferring responsive durable shaping of keratinous fibers employ at least one shape memory polymer that includes a three-armed branched polyethylene glycol (PEG) based polymer that is functionalized with one or more metal-coordination active groups. The shape memory polymer forms a crosslinked network coating on a substrate, for example a substrate selected from keratinous substrates, for example, hair. Hair coated with the shape memory polymer and treated with an oxidizing agent can be shaped, locked into shape, and reprogrammed by modulation of pH. The coated hair retains durable shaping properties through at least one shampoo treatment. The cosmetic compositions, systems and methods provide durable and reprogrammable durable shaping of the keratinous substrate, for example for styling hair.

RESIN COMPOSITION
20230120487 · 2023-04-20 · ·

Provided is a resin composition having excellent dielectric characteristics, i.e., low dielectric characteristics, in the high-frequency region, and excellent dielectric characteristics, i.e., low dielectric characteristics, under high humidity, and having practical adhesion to metal and resin substrates. More specifically, provided is a resin composition comprising an acid-modified polyolefin, an epoxy resin, and an inorganic filler, wherein a cured product of the resin composition has a dielectric loss tangent of 0.003 or less at a frequency of 10 GHz at 25° C. after storage for 168 hours under conditions of 85° C. and 85% RH (relative humidity).

AMINE EPOXY RESIN ADDUCT

An amine-functional adduct from the reaction of an amine mixture containing at least one diamine of formula (I) and at least one diamine of formula (II) in a weight ratio ranging from 65/35 to 95/5 with at least one diepoxide in a stoichiometric ratio of at least 1. 2 moles of diamine of the formula (I) to 1 mole equivalent of epoxide groups. The adduct is liquid at room temperature without diluent even in the presence of a small excess of diamine and is surprisingly low in viscosity. In addition, it is particularly cost-effective, as it is available from an amine mixture that is technically easy to produce. The adduct enables low-emission or emission-free epoxy resin coatings with surprisingly good workability at surprisingly fast curing, which have a high hardness and low tendency to yellowing, and which hardly tend to blushing-related defects even in cold and humid conditions.

SELF-ADHESIVE MILLABLE SILICONE RUBBER COMPOSITION
20230159708 · 2023-05-25 · ·

An self-adhesive millable silicone rubber composition contains: 100 parts by mass of (A) an organopolysiloxane having at least two alkenyl groups bonded to silicon atoms per molecule and an average polymerization degree of 100 or more; 5 to 50 parts by mass of (B) a reinforcing silica having a specific surface area of 50 m.sup.2/g or more; 0.1 to 5 parts by mass of (C) an organosilicon compound having epoxy and alkoxy groups per molecule; 0.1 to 5 parts by mass of (D) an organosilicon compound having isocyanate group and alkoxy groups per molecule; and an effective curing amount of (E) a curing agent. The content of an organosilicon compound having a siloxane bond and benzene ring per molecule is 0 to 0.1 parts by mass, and the content of an organosilicon compound having a siloxane bond and an epoxy group per molecule is 0 to 0.1 parts by mass.

MODIFIED POLY(PHENYLENE ETHER) COPOLYMERS, COMPOSITIONS, AND METHODS THEREOF
20230115320 · 2023-04-13 ·

A poly(phenylene ether) copolymer comprising first repeating units comprising a C.sub.1-6alkyl(C.sub.6-30cycloalkenyl) pendant group; second repeating units different from the first repeating units; a copolymer of Formula (3); and optionally, at least one terminal functional group comprising (meth)acrylate, styrene, —CH.sub.2—(C.sub.6H.sub.4)—CH═CH.sub.2, allyl, cyanate ester, glycidyl ether, anhydride, aniline, maleimide, an activated ester, or a combination thereof.

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COLD-STABLE NCO PREPOLYMERS, METHOD FOR THE PREPARATION AND USE THEREOF

A cold-stable NCO-containing prepolymer obtainable from the reaction of an isocyanate-reactive component comprising polyether carbonate polyols having an isocyanate component comprising methylene diphenyl diisocyanate (MDI) with high contents of 4,4′-MDI, a method for the preparation thereof, and the use thereof in one- or two-component systems for foams, elastomers, adhesives and sealants provided.

SILICONE-BASED PRODUCTS AND THEIR APPLICATIONS
20230104163 · 2023-04-06 ·

There is provided silicone based materials with enhanced tackiness upon cure. These may be used for cured self-adhering silicone-based products such as pressure sensitive adhesives, self-adhering materials and/or self-sealing materials, made from condensation curable silicone-based compositions, the compositions therefor and to applications for which said self-adhesive products may be used. In one particular application the cured silicone based material may be utilised as a self-sealing layer in an inflatable article such as a pneumatic tire.