Patent classifications
C08G18/78
Process for producing a polyurethane foam insole
Described herein is a method for producing a PU foam insole, including the following steps of: (1) pouring the raw materials used to form a PU foam into a mould, reacting to obtain a PU sheet, where the height of the mould cavity is from about 1.0 to about 1.6 times of the total thickness of two finished insoles; (2) splitting the PU sheet into two halves in the horizontal direction to obtain two pieces of PU insole material, where one surface of the material has open pores, and the other surface of the material has a skin; and (3) attaching a piece of fabric onto the surface having open pores of the material obtained in step (2). Also described herein is a PU foam insole produced by the method.
POLYISOCYANATE RESINS
A polyisocyanate resin can include from 25 wt % to 50 wt % of a first cycloaliphatic polyisocyanate and from 50 wt % to 75 wt % of a flexibilizing component based on a total weight of the polyisocyanate resin. The flexibilizing component can include a linear aliphatic polyisocyanate having a number average isocyanate functionality of from 2 to 3 based on gel permeation chromatography and an isocyanate-terminated reaction product of a second cycloaliphatic polyisocyanate and an isocyanate-reactive material, the reaction product having a Tg of less than −30° C. based on a Differential Scanning calorimetry (2.sup.nd Heating) temperature scan from −100° C. to 150° C. using 20° C./min heating and cooling ramps. The isocyanate-terminated reaction product and the linear aliphatic polyisocyanate can be present at a weight ratio of from 0.5 to 2.5.
Polar functional non-aqueous acrylic dispersions
Described herein is a polar non-aqueous dispersion comprising polar polymeric microparticles in a polar non-aqueous medium, the polar polymeric microparticles being insoluble in the medium and being produced by dispersion polymerization of vinyl monomers such as acrylate monomers in the medium in the presence of a polymeric acrylic stabilizer. Inks, coatings and overprint varnishes are formulated that employ the polar non-aqueous dispersion. Such inks, etc., exhibit superior chemical resistance properties, for example in one-part and two-part systems.
Polyaspartic coating composition, coating film, and coated article
The present invention provides a polyaspartic coating composition containing (A) an aspartic acid ester compound represented by the following formula (I) ##STR00001## [in formula (I), X is an n-valent organic group, and R.sub.1 and R.sub.2 are organic groups which are inert to the isocyanate group under a reaction condition, and n is an integer of 2 or more.], and (B) a polyisocyanate obtained by using one or more diisocyanate monomers selected from the group consisting of an aliphatic and alicyclic diisocyanate and a polycaprolactone polyol having a number-average molecular weight of 500 to 1,500, wherein a ratio of the polycaprolactone polyol is 20% by mass or more, and the polyisocyanate component contains 10.0% by mass or less of an isocyanurate trimer.
Compound, resin composition and laminated substrate thereof
A compound, a resin composition and a laminated substrate thereof are provided. The compound has a structure represented by Formula (I) ##STR00001##
wherein A.sup.1 is C.sub.24-48 alkylene group, C.sub.24-48 alkenylene group, C.sub.24-48 alkynylene group, C.sub.24-48 alicyclic alkylene group, C.sub.24-48 alicyclic alkenylene group, or C.sub.24-48 alicyclic alkynylene group. A.sup.2 is C.sub.2-12 alkylene group, C.sub.6-C.sub.25 arylene group with two reactive groups, C.sub.4-8 cycloalkylene group, C.sub.5-25 heteroarylene group, divalent C.sub.7-C.sub.25 alkylaryl group, divalent C.sub.7-25 acylaryl group, divalent C.sub.6-25 aryl ether group, or divalent C.sub.7-25 acyloxyaryl group; and, n≥1.
One-component hot melt polyurethane adhesive
One-component, moisture-curable polyurethane adhesives exhibit excellent handling strength before being fully cured, and excellent creep properties after curing. The adhesives include an isocyanate-terminated prepolymer made from polyols that include a crystalline polyester and hydroquinone bis (2-hydroxyethyl) ether, and a polyoxazolidine compound.
One-component hot melt polyurethane adhesive
One-component, moisture-curable polyurethane adhesives exhibit excellent handling strength before being fully cured, and excellent creep properties after curing. The adhesives include an isocyanate-terminated prepolymer made from polyols that include a crystalline polyester and hydroquinone bis (2-hydroxyethyl) ether, and a polyoxazolidine compound.
POLYASPARTIC COATING COMPOSITION, COATING FILM, AND COATED ARTICLE
A polyaspartic coating composition containing (A) an aspartic acid ester compound represented by the following formula (I)
##STR00001##
wherein X is an n-valent organic group, and R.sub.1 and R.sub.2 are organic groups which are inert to the isocyanate group under a reaction condition, and n is an integer of 2 or more, and (B) a polyisocyanate component obtained by reacting one or more diisocyanate monomers selected from the group consisting of an aliphatic and alicyclic diisocyanate with a polycaprolactone polyol having a number-average molecular weight of 500 to 1,500, wherein a ratio of the polycaprolactone polyol to a total amount of the polyol is 20% by mass or more, the polyisocyanate component contains 10.0% by mass or less of an isocyanurate trimer, and an average number of isocyanate groups of the polyisocyanate component (B) is 2.4 to 8.0.
Omniphobic polyurethane compositions, related articles, and related methods
The disclosure relates to a thermoset omniphobic composition, which includes a thermoset polymer with first, second, and third backbone segments, urethane groups linking the first and third backbone segments, and urea groups linking the first and second backbone segments. The first, second, and third backbone segments generally correspond to urethane or urea reaction products of polyisocyanate(s), amine-functional hydrophobic polymer(s), and polyol(s), respectively. The thermoset omniphobic composition has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The thermoset omniphobic composition can be used as a coating on any of a variety of substrates to provide omniphobic properties to a surface of the substrate. Such omniphobic coatings can be scratch resistant, ink/paint resistant, dirt-repellent, and optically clear. The thermoset omniphobic composition can be applied by different coating methods including cast, spin, roll, spray and dip coating methods.
WATER-DISPERSIBLE POLYISOCYANATE, AQUEOUS POLYURETHANE RESIN COMPOSITION, AND ARTICLE
A water-dispersible polyisocyanate contains an isocyanate group and a sulfone group. The water-dispersible polyisocyanate contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component. The polyisocyanate component contains a bis(isocyanatomethyl)cyclohexane derivative. The hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound. The bis(isocyanatomethyl)cyclohexane derivative contains an allophanate derivative and an isocyanurate derivative. The allophanate derivative is contained in an amount of 25% by mass or more and 75% by mass or less relative to the total amount of the allophanate derivative and the isocyanurate derivative.