C08G18/7607

ADHESIVE LAMINATE AND METHOD FOR MAKING RETROREFLECTIVE TAPE WITH THE ADHESIVE LAMINATE
20180194972 · 2018-07-12 ·

Provided is an adhesive laminate and a method for making retroreflective tapes with the adhesive laminate. The adhesive laminate is coated and laminated on the conventional retroreflective substrate. The adhesive laminate comprises: a retroreflective substrate adhesive layer and a temporary carrier adhesive layer. The adhesive laminate may further comprise a cross-linking layer between the retroreflective substrate adhesive layer and the temporary carrier adhesive layer. The adhesive laminate has excellent adhesion to rubber articles. The conventional retroreflective substrate may be attached on the rubber articles firmly by the adhesive laminate. The adhesive laminate may not deform or be damaged during attachment process. The adhesive laminate also may not peel off from the rubber articles after use over time. Rubber articles with the adhesive laminate have lasting light-reflecting and alerting effects with enhanced safety.

PHOTOSENSITIVE RESIN COMPOSITION AND DRY FILM PHOTORESIST CONTAINING THE SAME
20180120700 · 2018-05-03 ·

The present invention provides a photosensitive resin composition, comprising: (a) photo-polymerizable unsaturated compound, (b) hydroxyurethane compound, and (c) photoinitiator. The photosensitive resin composition can be used as photoresist coating for dry film photoresist to manufacture the electronic components, such as print circuit board and so on. Further, the (b) hydroxyurethane compound having [CC]/[NH.sub.2] between 0.5 and 0.9, which increases the resolution, adhesion, and stripping ability of photosensitive resin composition for dry film photoresist, and improves the effectiveness and the quality of dry film photoresist for manufacturing printed circuit board and other electric component.

POLYURETHANE FORMING COMPOSITION AND FLEXIBLE POLYURETHANE FOAM
20180079853 · 2018-03-22 · ·

A polyurethane forming composition is for producing a flexible polyurethane foam by reaction with an isocyanate component and contains a polyol component, a foaming agent, a cross-linking agent, and a foam stabilizer. In the polyurethane forming composition, the cross-linking agent is contained in a proportion of 0.3 to 1.5 parts by mass relative to 100 parts by mass of the polyol component and the foam stabilizer having a weight-average molecular weight of 4000 to 6000 is contained in a proportion of 0.05 to 0.1 parts by mass relative to 100 parts by mass of the polyol component.

Polyol composition for producing flexible polyurethane foam and flexible polyurethane foam

A polyrotaxane is blended into a polyol composition, which can reduce the tensile stress of a flexible polyurethane foam. A vertical compressive stress due to the weight of a sitting user and a tensile stress due to the input of lateral vibrations act on a urethane pad. However, by reducing the tensile stress of the flexible polyurethane foam, the direction (inclination) of a resultant force obtained by combining the compressive stress and the tensile stress can be brought close to the vertical direction. Thus, the angle of inclination of the user's hip (ischium) on the urethane pad to the vertical direction due to the input of lateral vibrations can be reduced, so that the sense of wobble of the urethane pad can be reduced.

Photocurable Compositions for Three-Dimensional Printing

A three-dimensional printing photocurable composition includes from 20 wt % to 70 wt % of an urethane acrylate component, from 20 wt % to 60 wt % of a multifunctional epoxide component, from 1 wt % to 15 wt % of a monomer component, and from 1 wt % to 8 wt % of a photoinitiator component, based on the total weight of the composition. The urethane acrylate component includes the capping reaction product of an acrylate and an isocyanate terminated prepolymer and the isocyanate-terminated prepolymer is the reaction product of a polyisocyanate and at least one polyol having a molecular weight of at least 3000 g/mol. The multifunctional epoxide component includes one or more multifunctional epoxides. The monomer component includes at least one of a multifunctional acrylate monomer and a multifunctional vinyl ether monomer.

URETHANE (METH)ACRYLATE RESIN, CURABLE RESIN COMPOSITION, CURED PRODUCT THEREOF, AND PLASTIC LENS
20180030198 · 2018-02-01 ·

A urethane (meth)acrylate resin wherein the viscosity of the resin is low, the formability into a sheet-formed product, in particular, an optical sheet provided with fine uneven shapes on the surface is excellent, and a high refractive index can be realized, a curable resin composition including the urethane (meth)acrylate resin as an indispensable component, a cured product thereof, and a plastic lens are provided. A urethane (meth)acrylate resin produced by reacting aromatic diisocyanate compound (a), bisphenol-ethylene oxide adduct diol (b) having at least three aromatic ring or alicyclic structures in the molecule, and hydroxy-containing (meth)acrylate compound (c), which are indispensable raw material components, a curable resin composition containing the urethane (meth)acrylate resin as a primary component, and a cured product thereof.

BIO-BASED AND HYDROPHILIC POLYURETHANE PREPOLYMER AND FOAM MADE THEREFROM
20180022855 · 2018-01-25 ·

A bio-based polyurethane foam manufactured by a process that involves cleaning a bio-based polyoxyalkylene glycol polyol by a method comprising the steps of adding an adsorbent to the bio-based polyoxyalkylene glycol polyol to create a mixture in the ratio of 0.5% to 5.0% adsorbent to bio-based polyoxyalkylene glycol polyol by weight, stirring the mixture in a gaseous nitrogen environment, replacing the gaseous nitrogen environment with a gaseous carbon dioxide environment, and filtering the mixture to separate impurities from the mixture and create a cleaned bio-based polyoxyalkylene glycol polyol; then mixing the cleaned bio-based polyoxyalkylene glycol polyol with a polyfunctional isocyanate to create a bio-based polyurethane prepolymer; and then foaming the bio-based polyurethane prepolymer by admixing with an excess of water to make the bio-based polyurethane foam.

FOAMED ISOCYANATE-BASED POLYMER

There is described a foamed isocyanate-based polymer derived from a reaction mixture comprising: an isocyanate; a polyol composition comprising a first prescribed amount of polymer particles dispersed in a base polyol; a second prescribed amount of biomass-based carbonaceous particulate material; and a blowing agent. In one embodiment, the foamed isocyanate-based polymer having an Indentation Force Deflection when measured pursuant to ASTM D3574-11 which is within about 15% as that of a reference foam produced by omitting the biomass-based carbonaceous particulate material from the reaction mixture and increasing the amount of polymer particles in the polymer polyol composition to equal the sum of the first prescribed amount and the second prescribed amount. In another embodiment, the foamed polymer has a cellular matrix comprising a plurality of interconnected struts, the biomass-based carbonaceous particulate material conferring to the cellular matrix a load efficiency of at least about 5 Newtons/weight % of biomass-based carbonaceous particulate material. A process to produce the foamed isocyanate-based polymer is also described. A polyol-based dispersion to produce the foamed isocyanate-based polymer is also described. It has been discovered that a relatively expensive petroleum-based copolymer polyol can be fully substituted by a relative inexpensive bio-based (amorphous carbon) dispersion with no significant compromise in important physical properties in the resulting polyurethane foam.

COMPOSITION FOR POLYURETHANE FOAM, FOAM PREPARED THEREFROM AND A METHOD THEREOF

A composition and method for preparing a polyurethane foam. The composition comprises at least one emission control agent. In embodiments, the composition comprises at least one emission control agent selected from the group consisting of (i) a phosphorous containing group; (ii) a thiocarbamate; (iii) a nitrogen containing compound; (iv) a phenolic antioxidant; or a combination of two or more thereof. The invention also relates to a method of controlling the emission of at least one aldehyde species in a raw material employed in the foam composition or that may be produced during the foam forming or foam curing or foam aging process.

POLYURETHANE COMPOSITION
20250034315 · 2025-01-30 ·

Polyurethane foam compositions having reduced odor and methods for producing the same are provided. The polyurethane foam compositions can include (a) a polyfunctional isocyanate; (b) an isocyanate reactive composition; and (c) an amine catalyst.