C08G18/348

POLYURETHANE GELS
20220378670 · 2022-12-01 ·

The present invention relates to gel compositions comprising a polyurethane elastomer. The polyurethane elastomer is formed from the reaction of a polyol, a polyisocyanate, and optionally a polyurethane reaction catalyst, optionally in the presence of a topically acceptable carrier fluid. In some embodiments, the gel composition comprises a personal active ingredient or a healthcare active ingredient, which may be incorporated into the gel composition via a pre-load method or a post-load method. Also provided herein are gel pastes and topical formulations comprising the polyurethane elastomers, and methods of making the same.

LAMINATED FILM

The present invention provides an environment-responsive laminated film including an inorganic thin film layer and a protective layer in this order on a substrate film layer using a polyester resin recycled from PET bottles. The laminated film has excellent barrier properties and adhesiveness even after a severe wet heat treatment and has less deterioration in appearance of the film even after retorting. The laminated film comprises a substrate film; an inorganic thin film layer on at least one surface of the substrate film; and a protective layer containing a urethane resin on the inorganic thin film layer, wherein (a) the substrate film contains 50% by weight or more of a polyester resin recycled from PET bottles; (b) standard deviation of a haze after retorting the laminated film at 130° C. for 30 minutes is 0.5% or less; and (c) an adhesion amount of the protective layer is 0.5 g/m.sup.2 or less.

INK-RECEPTIVE COATINGS FOR PRINTING ON ABSORBING SUBSTRATES

Provided are ink-receptive coating compositions including: (a) an aqueous anionic polyurethane dispersion; and (b) an aqueous solution of a nonionic polyurethane. Methods of coating substrates, and of printing, including providing and/or coating the composition onto a substrate are also provided.

Aqueous Coating Composition
20220372327 · 2022-11-24 ·

Provided is an aqueous coating composition that can exhibit high coating film performance even when cured at a relatively low temperature. The present invention pertains to an aqueous coating composition comprising (A) a hydroxyl group-containing resin and (B) a blocked polyisocyanate compound. The weight average molecular weight of the blocked polyisocyanate compound (B) is in a range of 20,000-200,000.

Thermoplastic compositions, methods, apparatus, and uses

Thermoplastic polyurethane (TPU) compositions, methods for producing TPU compositions, methods of using TPU compositions, and apparatuses produced therefrom are disclosed. Disclosed TPU compositions include a thermoplastic polyurethane polymer, a heat stabilizer, a flow agent, and a filler material. The filler may be a glass fiber. Disclosed TPU compositions have improved thermal stability and improved flow properties suitable for injection molding of articles of manufacture having a large plurality of fine openings or pores. Articles produced from the composition have superior thermal stability, abrasion resistance, and chemical resistance. Example articles include screening members for vibratory screening machines. Further embodiments include compositions without heat stabilizers, flow agents, and filler materials, and compositions in which two TPU materials having different harnesses are combined to generate a material with a pre-determined hardness. Injection molded screen elements having openings from 25 to 150 microns and open screening area from 10% to 35% are disclosed.

MULTI-AZIRIDINE COMPOUND

The present invention relates to a multi-aziridine compound having: a) at least 2 of the following structural units (A) whereby R.sub.1 is H; R.sub.2 and R.sub.4 are independently chosen from H, a linear group containing from 1 to 8 carbon atoms and optionally containing one or more heteroatoms, a branched or cyclic group containing from 3 to 8 carbon atoms and optionally containing one or more heteroatoms, phenyl, benzyl, or pyridinyl; R.sub.3 is chosen from a linear group containing from 1 to 8 carbon atoms and optionally containing one or more heteroatoms, a branched or cyclic group containing from 3 to 8 carbon atoms and optionally containing one or more heteroatoms, phenyl, benzyl, or pyridinyl; or R.sub.2 and R.sub.3 (in case R.sub.2 is different than H) may be part of the same cyclic group containing from 3 to 8 carbon atoms; R′ and R″ are independently H or an aliphatic hydrocarbon group containing from 1 to 12 carbon atoms; and b) a molecular weight of at least 600 Daltons, wherein the molecular weight is determined using MALDI-TOF mass spectrometry according to the description.

METHOD FOR FORMING MULTILAYER COATING FILM
20220355338 · 2022-11-10 · ·

This invention provides a method for forming a multilayer coating film, comprising applying a base paint (X) having a solids content ratio of 30 to 62 mass % to a substrate to form a base coating film having a cured film thickness of 6 to 45 μm; applying an effect pigment dispersion (Y) having a solids content ratio of 0.1 to 10 mass % to the base coating film to form an effect coating film having a cured film thickness of 0.1 to 5.0 μm; applying a two-component clear paint (Z) containing a hydroxy-containing resin and a polyisocyanate compound to the effect coating film to form a clear coating film; and heating the base coating film, the effect coating film, and the clear coating film to simultaneously cure these coating films; wherein the base paint (X) contains a polyurethane resin (A), an alcohol (B) containing 6 to 12 carbon atoms, and an organic solvent (C) having an HLB of 7 to 9, and the effect pigment dispersion (Y) contains water, a flake-effect pigment (P), a resin emulsion (Q), and cellulose nanofibers (R).

USES OF MICROBIAL DERIVED MATERIALS IN THERMOSET APPLICATIONS

This disclosure provides methods for the chemical modification of microbial derived triglyceride oils, use thereof in polyurethane chemistries, and incorporation thereof in the production of sporting goods equipment, including, for example, alpine skis, touring skis, cross country skis, approach skis, split boards, snowboards, surfboards, paddleboards, and water skis.

Non-aqueous crosslinkable composition

The present invention relates to a crosslinkable composition comprising a polyol, a polyisocyanate crosslinker, a catalyst for catalysing the reaction between —OH groups of said polyol and —NCO groups of said crosslinker, a tertiary acid of formula RR′R″CCOOH (I), wherein each R, R′ and R″ group, independently, is an alkyl, alkenyl, aryl or aralkyl group containing at least one carbon atom, with the proviso that two or three of the R, R′ and R″ groups can be linked to form a ring structure and wherein the R, R′ and/or R″ groups can be substituted, and optionally, a complexing agent containing at least one —SH group, as well as its use for making coatings having improved application properties.

One component self-crosslinking coatings

A waterborne one-component coating composition capable of self-crosslinking and exhibiting a gloss and hardness improvement when cured that is similar to a solventborne two-component composition. The composition includes a urethane phase including a polyurethane polymer with at least polyester diol monomer units, polycarbonate diol monomer units, and ketone-functionalized diol monomer units. The composition may include an optional acrylic phase including an acrylic polymer having monomer units selected from one of alkyl (meth)acrylate monomer units, vinyl acetate monomer units, styrene monomer units, ketone-functional vinyl monomer units, or combinations thereof. The composition includes a hydrazine-functionalized crosslinking agent configured to crosslink one of the ketone-functionalized diol monomer units, the ketone-functional vinyl monomer units, or both. The composition further includes one or more tertiary amine reaction moderators or neutralizing agents.