C08G18/4841

IMPACT RESISTANT GARMENT
20230145775 · 2023-05-11 ·

An impact resistant textile-supported garment, or component thereof, comprises a fabric layer, and (i) at least five non-interconnected impact resistant polyurethane segments upon an outer surface of the fabric layer, wherein at least two of the non-interconnected impact resistant polyurethane segments has a depth of at least 3 mm, preferably at least 4 mm, and wherein at least five of the plurality of non-interconnected segments have dimensions smaller than 1.75 cm × 1 cm × 1 cm; or (ii) at least one non-interconnected impact resistant polyurethane segment, wherein the at least one segment has a depth of at least 3 mm at its deepest part, and wherein the at least one segment is a hollow segment comprising one or more regions defined by an outer polyurethane perimeter, surrounding a region of fabric that is not covered by polyurethane.

Polymerizable composition for optical materials and application of same

A polymerizable composition for optical materials of the present invention includes a polymer (a) comprised of one or more compounds selected from compounds represented by the following General Formulas (1) to (4), a compound (b) of which light absorption characteristics vary by sensing changes in environment; and a polymerization reactive compound (c) (except for the polymer (a)). ##STR00001##

Acute care cover for severe injuries

A compound made by copolymerizing a poly(N-isopropylacrylamide) chain transfer agent, an acrylate salt, and a polyethylene glycol diacrylate. A compound made by copolymerizing a polyethylene glycol, a glycerol ethoxylate, and an aliphatic diisocyanate.

Catalysts for producing polyurethanes

A tertiary amine compound is shown and described herein. The tertiary amine is a reaction product of an isocyanate and a compound bearing an active hydrogen and a bicyclic tertiary amine in its molecule. The tertiary amine compounds have been found to be suitable as catalysts for producing polyurethanes. Also shown and described are processes employing the tertiary amine compounds in a reaction of an isocyanate and an alcohol in the presence of the tertiary amine compounds. Further, also shown and described is a method for making the tertiary amine.

ACETALDEHYDE SCAVENGER TREATMENT

A method of forming a vehicle interior foam article, the method including applying a mold release agent onto an inner surface of a mold, delivering a solution having aldehyde scavenger(s) to the mold such that a reaction of the aldehyde scavenger(s) with the mold release agent is prevented, delivering a foam material into the mold, and casting the article.

Skin contact adhesive and methods for its preparation and use

A crosslinkable composition is useful for preparing a skin contact adhesive or a coating on a substrate. The crosslinkable composition includes (A) a polyurethane-polyorganosiloxane copolymer and (B) a curing catalyst. The skin contact adhesive prepared by crosslinking the crosslinkable composition is useful in applications such as adhesives for medical tapes, adhesives for wound dressings, adhesives for prosthetics, ostomy appliance adhesives, adhesives for medical monitoring appliances, adhesives for scar therapy treatments, adhesives for cosmetic patches, and transdermal drug delivery systems.

One method of producing polyether polymer dispersant and polyether polymer

The invention discloses one method of producing polyether polymer dispersant and polyether polymer, wherein the dispersant is a copolymer macromolecule prepared by the propylene oxide or ethylene oxide with an average molecular weight of 6000 to 20000, with containing at least one benzene ring group and one polymerizable carbon-carbon double or triple bond polymer. The preparation method of the dispersant is: synthesizing a basic polyether polyol, adding a cyclic dicarboxylic anhydride into the polyether polyol, then the polyether polyol is reacted with an epoxy compound with the polymerizable double bond, and capping with an epoxy compound to obtain the dispersant; preparing the polymer polyol by the basic polyol, an unsaturated vinyl monomer styrene and acrylonitrile, a polymerization initiator, the dispersant and an optional chain transfer agent; the basic polyether is a polyether polyol with a functionality of 3 to 8.

ADHESIVE FILM, ADHESIVE LAYER-EQUIPPED TRANSPARENT PLATE AND DISPLAY DEVICE
20170313039 · 2017-11-02 · ·

To provide an adhesive film by which air bubbles formed at a bonding interface when the adhesive film is used for bonding, readily disappear under normal temperature and normal pressure.

One embodiment of the adhesion film of the present invention is characterized by having at least one adhesive layer, wherein the adhesive layer satisfies the following requirements (a) to (c). (a) A diffusion coefficient of nitrogen gas is at least 1.5×10.sup.−6 cm.sup.2/sec. (b) A shear modulus G′ (1 Hz) is from 5×10.sup.2 to 1.0×10.sup.5 Pa, at a measurement temperature of 25° C. and a frequency of 1 Hz. (c) The adhesive layer has an absorption peak at from 800 to 820 cm.sup.−1 and no absorption peak at from 1,000 to 1,020 cm.sup.−1, in an infrared absorption spectrum.

Polyurethane composites comprising nanocrystalline cellulose and method for improving properties of polyurethanes thereof
09796849 · 2017-10-24 · ·

A process for preparing polyurethane composites includes (i) providing a dispersion of nanocrystalline cellulose in (a) one or more polyols, (b) one or more isocyanates, or (c) one or more polyols and one or more isocyanate, mixed together; wherein the amount of water in the nanocrystalline cellulose is less than about 1% w/w; (ii) mixing the dispersion of (i)(a) with an isocyanate or (i)(b) with a polyol and a catalyst to allow polymerization; or mixing the dispersion of (i)(c) and a catalyst to allow polymerization; and (iii) isolating the polyurethane composite. A method for improving properties of polyurethanes includes dispersing nanocrystalline cellulose into one or both parts of a two part polyol/isocyanate precursors prior to allowing polymerization of the precursors, wherein the amount of water in the nanocrystalline cellulose is less than about 1% w/w; mixing the dispersion with a catalyst; and polymerizing the precursors to provide the polyurethane.

FLEXIBLE POLYUREA SEALANT COMPOSITIONS
20170298171 · 2017-10-19 ·

Disclosed are polyurea compositions and methods for using such composition as sealants, such as construction sealants.