摘要:
1-Hydrocarbyloxy-2,2,6,6-tetramethylpiperidine derivatives of s-triazines having functional groups such as hydroxy, amino, carboxy, epoxy, isocyanate or the like present are capable of chemically bonding with polymer substrates having anhydride, epoxide, alkoxymethylmelamine or isocyanate moieties present. This chemical bonding prevents migration or loss of the stabilizer during subsequent processing or end-use application of the stabilized polymer.
摘要:
A polymer comprising a backbone portion containing at least one amide moiety and a plurality of imidazole, benzimidazole, benzoxazole, or benzothiazole moieties is prepared by contacting a polyisocyanate with a compound containing at least two end moieties selected from the following: imidazole, benzimidazole, benzoxazole, or benzothiazole, under reaction conditions sufficient to form the corresponding polymer containing amide moieties are disclosed. The process of the invention is suitable for the preparation of thermoset polymers which are advantageously free of surface defects, since a solvent is not required and no volatiles are evolved during the curing process. Urethane and/or urea polymers comprising a backbone portion containing at least one urea or urethane moiety, at least one amide moiety, and a plurality of imidazole, benzimidazole, benzoxazole, or benzothiazole moieties are also disclosed.
摘要:
OXYALKYLATED DERIVATIVES OF GLYCOLURIL AND SUBSTITUTED GLYCOLURILS ARE PREPARED BY HYDROXYALKYLATION WITH 1,2EPOXIDES IN THE PRESENCE OF A SUITABLE CATALYST. THE COMPOUNDS ARE USEFUL TO PREPARE POLYESTERS, ALKYD RESINS, AND POLYURETHANES AND AS LUBRICANTS AND SURFACE ACTIVE AGENTS.
摘要:
An addition compound, prepared by reacting a) one or more polyisocyanates having an average functionality of 2-6; b) one or more compounds comprising at least one chain selected from the group consisting of polyester, polyether, polyacrylate, polyurethane, polyolefin and a combination thereof; and at least one isocyanate reactive group, wherein the at least one isocyanate reactive group is an amino group; and c) one or more compounds selected from the group consisting of N-(3-aminopropyl) imidazole (API), benzoguanamine (BGA) and N-(2-aminoethyl) piperazine (AEP). The addition compound is suitable as dispersant or anti-sedimentation agent, especially for pigments, fillers and matting agents.
摘要:
1-Hydrocarbyloxy-2,2,6,6-tetramethylpiperidine derivatives of s-triazines having functional groups such as hydroxy, amino, carboxy, epoxy, isocyanate or the like present are capable of chemically bonding with polymer substrates having anhydride, epoxide, alkoxymethylmelamine or isocyanate moieties present. This chemical bonding prevents migration or loss of the stabilizer during subsequent processing or end-use application of the stabilized polymer.
摘要:
PHENYL-SUBSTITUTED OXYALKYLATED DERIVATIVES OF GLYCOLURILS ARE PREPARED BY REACTION OF GLYCOLURILS WITH 1 TO 3 MOLS OF STYRENE OXIDE PER MOL OF GLYCOLURIL IN THE PRESENCE OF A SUITABLE CATALYST. THESE COMPOUNDS ARE USEFUL LUBRICANTS AND INTERMEDIATES TO PREPARE POLYURETHANES, POLYESTERS, ALKYD RESINS AND SURFACE ACITVE AGENTS.
摘要:
A method for forming an aqueous polyurethane dispersion including providing an isocyanate (NCO)-terminated prepolymer with a side-chain reactive functional group by admixing (i) at least one diisocyanate, (ii) at least one difunctional polyol, (iii) a short-chain diol monomer having a side-chain reactive functional group or a modified clay thereof, (iv) at least one hydroxy carboxylic acid compound and (v) a hydrophilic cosolvent; neutralizing the NCO-terminated prepolymer with a tertiary amine; dispersing the NCO-terminated prepolymer in water; and admixing the NCO-terminated prepolymer with at least one chain extending agent comprising a hydrophilic diamine; wherein the short-chain diol monomer (iii) is expressed by structural formula (I): wherein, A is an azetidine-2,4-dione functional group or a malonamide-linked alkyl group and B is a nitrogen-linked di-hydroxy terminal group or tertiary amine-linked di-hydroxy terminal group wherein IDD was synthesized by methylenedi-p-phenyl diisocyanate and isobutyryl chloride using triethylamine as catalyst.
摘要:
A method for forming an aqueous polyurethane dispersion including providing an isocyanate (NCO)-terminated prepolymer with a side-chain reactive functional group by admixing (i) at least one diisocyanate, (ii) at least one difunctional polyol, (iii) a short-chain diol monomer having a side-chain reactive functional group or a modified clay thereof, (iv) at least one hydroxy carboxylic acid compound and (v) a hydrophilic cosolvent; neutralizing the NCO-terminated prepolymer with a tertiary amine; dispersing the NCO-terminated prepolymer in water; and admixing the NCO-terminated prepolymer with at least one chain extending agent comprising a hydrophilic diamine; wherein the short-chain diol monomer (iii) is expressed by structural formula (I): wherein, A is an azetidine-2,4-dione functional group or a malonamide-linked alkyl group and B is a nitrogen-linked di-hydroxy terminal group or tertiary amine-linked di-hydroxy terminal group wherein IDD was synthesized by methylenedi-p-phenyl diisocyanate and isobutyryl chloride using triethylamine as catalyst.
摘要:
A linear isocyanate polymer produced by utilizing an effective amount of tetrazole diol or tetrazole polyol, reacting with an effective amount isocyanate resin, and cooling to room temperature producing a linear polyisocyanate polymer.