The present invention relates to a bio-based polyol comprising a thiol-epoxy reaction product of an epoxidized nut or seed oil derivative, and a thiol-containing reactant. The bio-based polyol of the present invention can then be combined with a diisocyanate or a polymeric isocyanate to create a polyurethane material.

The present invention relates to a modified polyurethane prepolymer, a two-component polyurethane adhesive and the preparation method thereof. The modified polyurethane prepolymer is prepared from the raw materials comprising the following components: polyurethane prepolymer and graphene oxide; wherein, the polyurethane prepolymer is prepared from the raw materials comprising the following components: copolymer containing ureidopyrimidinone groups and aliphatic isocyanate; wherein, the copolymer containing ureidopyrimidinone groups is formed by copolymerization of the raw materials comprising the following components: alkyl acrylate ureidopyrimidinone, and hydroxyethyl alkyl acrylate; wherein, the alkyl acrylate ureidopyrimidinone has the structure shown in Formula (I); and the hydroxyethyl alkyl acrylate has the structure shown in Formula (II). The two-component polyurethane adhesive containing the modified polyurethane prepolymer has excellent mechanical properties and aging resistance simultaneously.

##STR00001##

The present invention is directed towards an electrodepositable coating composition comprising a polyfarnesene polymer and an ionic salt group-containing film-forming polymer. Also disclosed are methods of coating a substrate using the electrodepositable coating composition, coatings derived from the electrodepositable coating composition, and substrates coated with the coatings derived from the electrodepositable coating composition.

The invention relates to a composition that contains a binary mixture of bisphenol F and propoxylated bisphenol F. The aim of the invention is to provide aromatic polyols for preparing polyurethane-based and polyisocyanurate-based polymers, which ensure good handling from a technical point of view and good miscibility with the isocyanate component and render the end product flameproof. For this purpose, the invention devises a composition, which contains a binary mixture of ethoxylated bisphenol F and propoxylated bisphenol F in a weight ratio of 20:80 to 80:20.

Provided is a prepeg resin composition, containing: a urethane (meth)acrylate (A) that is a reaction product of polyisocyanate (a1), polyol (a2), and hydroxy alkyl (meth)acrylate (a3); and a polymerization initiator (B), as an essential component, in which the polyisocyanate (a1) is at least one polyisocyanate selected from 2,4′-diphenyl methane diisocyanate, 4,4′-diphenyl methane diisocyanate, a carbodiimide modified product of 4,4′-diphenyl methane diisocyanate, and polymethylene polyphenyl polyisocyanate, and the polyol (a2) has an aromatic-ring and an oxyalkylene structure. The prepreg resin composition of the invention is excellent in workability and molding properties, and is capable of forming a molded article excellent in various physical properties such as external appearance and heat resistance, and thus, can be preferably used in a prepreg and a molded article thereof.

This invention relates to a multi-part kit system to repair damaged products used in industrial applications, comprising a part A which comprises A1) MDI prepolymer, A2) fumed silica and A3) plasticizer; a part B which comprises B1) hydroquinone di-(2-hydroxyethyl)ether and B2) plasticizer; and a part C which comprises C1) polyol, C2) optionally catalyst and C3) optionally plasticizer.

This invention relates to a multi-part kit system to repair damaged products used in industrial applications, comprising a part A which comprises A1) MDI prepolymer, A2) fumed silica and A3) plasticizer; a part B which comprises B1) hydroquinone di-(2-hydroxyethyl)ether and B2) plasticizer; and a part C which comprises C1) polyol, C2) optionally catalyst and C3) optionally plasticizer.

The present invention provides polyurethanes including a reaction product of components including: (a) an isocyanate functional urethane prepolymer comprising a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.1 to about 0.5 equivalents of at least one diol having 2 to 18 carbon atoms; and (b) about 0.05 to about 0.9 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and (c) up to about 0.9 equivalents of at least one polyol different from branched polyol (b) and having 2 to 18 carbon atoms, wherein the reaction product components are essentially free of polyester polyol and polyether polyol; compositions, coatings and articles made therefrom and methods of making the same.

The present invention provides polyurethanes including a reaction product of components including: (a) an isocyanate functional urethane prepolymer comprising a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.1 to about 0.5 equivalents of at least one diol having 2 to 18 carbon atoms; and (b) about 0.05 to about 0.9 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and (c) up to about 0.9 equivalents of at least one polyol different from branched polyol (b) and having 2 to 18 carbon atoms, wherein the reaction product components are essentially free of polyester polyol and polyether polyol; compositions, coatings and articles made therefrom and methods of making the same.

The present application relates to the technical field of floor surface decoration materials, and particularly provides a multi-coating radiation-cured pre-coating film and a preparation method therefor. The first aspect of the present application provides the multi-coating radiation-cured pre-coating film, which sequentially comprises a flexible transparent film layer and a radiation-cured coating from bottom to top, wherein the radiation-cured coating sequentially comprises a radiation-cured elastic primer layer and a radiation-cured wear-resistant finish paint layer from bottom to top, the at least one radiation-cured elastic primer layer and the at least one radiation-cured wear-resistant finish paint layer are arranged, and the radiation-cured elastic primer layer equentially comprises a radiation-cured elastic wear-resistant primer layer and a radiation-cured elastic matte/bright primer layer from bottom to top.