Described herein is a pressure sensitive adhesive comprising a polyurethane polymer derived from a polyester polyol and a polyisocyanate component, wherein the polyester polyol, which is derived from a first reaction product of (a) a Component A, wherein the Component A is a phthalic acid, a phthalic anhydride or mixtures thereof, (b) a Component B, wherein the Component B is a dimer fatty acid, a dimer fatty acid diol or mixtures thereof, and (c) a Component C, wherein the Component C is an aliphatic diol, an aromatic diol, or mixtures thereof, wherein Component C comprises 2 to 10 carbon atoms and optionally catenated heteroatoms selected from O, S, and N. Also disclosed herein are polyurethane polymers and pressure sensitive adhesives made from the polyurethane polymers or the polyester polyols.

Described herein is a pressure sensitive adhesive comprising a polyurethane polymer derived from a polyester polyol and a polyisocyanate component, wherein the polyester polyol, which is derived from a first reaction product of (a) a Component A, wherein the Component A is a phthalic acid, a phthalic anhydride or mixtures thereof, (b) a Component B, wherein the Component B is a dimer fatty acid, a dimer fatty acid diol or mixtures thereof, and (c) a Component C, wherein the Component C is an aliphatic diol, an aromatic diol, or mixtures thereof, wherein Component C comprises 2 to 10 carbon atoms and optionally catenated heteroatoms selected from O, S, and N. Also disclosed herein are polyurethane polymers and pressure sensitive adhesives made from the polyurethane polymers or the polyester polyols.

The polymerized rosin compound of the invention includes a rosin dimer component (A) including a bifunctional rosin dimer component (a1) represented by formula (1): ROOCXCOOR, wherein X represents a rosin dimer residue, and R represents hydrogen, an alkyl group of 1 to 5 carbon atoms, or a benzyl group, wherein the rosin dimer component (A) contains a content of the bifunctional rosin dimer component (a1) of 80% by weight or more and the polymerized rosin compound contains a content of the rosin dimer component (A) of 80% by weight or more. The polymerized rosin compound contains a large amount of the bifunctional rosin dimer component and makes it possible to obtain linear polymer with a high molecular weight.

The invention provides a high-molecular liquid crystal material for a frame of a Liquid Crystal Display (LCD), which is prepared by cross-linking and polymerizing a group which includes terephthalic acid and an alcohol which includes carbon-carbon double bonds, wherein, the group which includes terephthalic acid is any one of terephthalic acid, ortho-alkyl-terephthalic acid or meta-alkyl-terephthalic acid; the alcohol which includes carbon-carbon double bonds is any one of vinyl alcohol, vinyl alcohol with alkyl, or conjugated vinyl alcohol. The high-molecular liquid crystal material improves the steric hindrance among the molecules, and prevents from reacting with the liquid crystal small molecules to form a coordination complex; the high-molecular liquid crystal material has high stability, and cannot form a solid state under a certain molecular weight, thus improving the flexibility and being beneficial for the coating process.

The invention provides a high-molecular liquid crystal material for a frame of a Liquid Crystal Display (LCD), which is prepared by cross-linking and polymerizing a group which includes terephthalic acid and an alcohol which includes carbon-carbon double bonds, wherein, the group which includes terephthalic acid is any one of terephthalic acid, ortho-alkyl-terephthalic acid or meta-alkyl-terephthalic acid; the alcohol which includes carbon-carbon double bonds is any one of vinyl alcohol, vinyl alcohol with alkyl, or conjugated vinyl alcohol. The high-molecular liquid crystal material improves the steric hindrance among the molecules, and prevents from reacting with the liquid crystal small molecules to form a coordination complex; the high-molecular liquid crystal material has high stability, and cannot form a solid state under a certain molecular weight, thus improving the flexibility and being beneficial for the coating process.

The present invention relates to a polyurethane dispersion comprising particles of a polyurethane dispersed in a dispersing medium, wherein the polyurethane is obtainable by reacting a polyol and an isocyanate, wherein the polyol comprises at least one dimer fatty residue selected from a dimer fatty diacid residue, a dimer fatty diol residue and a dimer fatty diamine residue; and at least one furan dicarboxylic acid residue. The invention also relates to a coating composition comprising the polyurethane dispersion, a polyol for making the polyurethane dispersion, the use of the polyol and a method of making the polyurethane.

A multi-component primer system is provided. The system at least includes a first component and a second component. The first component comprises an acrylic resin, a polyester resin, and an epoxy resin. The acrylic resin and the polyester resin each have acetoacetoxy functionality. The second component comprises ketimines.

A copolyester, comprising structural units represented by [I], [II], [III] and [IV]. The number of structural units represented by [III] is 1-99% of the number of structural units represented by [I], and the number of structural units represented by [IV] is 0-99% of the number of structural units represented by [I]. Also provided are a preparation method therefor and an application thereof. Because an introduced high-temperature self-crosslinking group and an ion group can improve the melt viscosity and the melt intensity during burning of a copolyester, and effectively enhance the char-forming capability of the copolyester, the copolyester exhibits excellent flame retardance and anti-dripping performance. The preparation process for the copolyester is mature, convenient to operate, and easy to control and apply to industrial production. ##STR00001## ##STR00002## ##STR00003## ##STR00004## ##STR00005##

A composite glass fiber material includes a thermosetting polymer, which is obtained from a curable resin composition that includes (i) an ethylenically unsaturated resin and (ii) a reactive diluent. The reactive diluent is an N-vinyloxazolidinone of formula (I)

##STR00001##

in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently from one another a hydrogen atom or an organic moiety having 1 to 10 carbon atoms. The reactive diluent (ii) is present in an amount of at least 0.5 wt-% relative to the total amount of reactive diluent (ii) and further reactive diluents.

A composite glass fiber material includes a thermosetting polymer, which is obtained from a curable resin composition that includes (i) an ethylenically unsaturated resin and (ii) a reactive diluent. The reactive diluent is an N-vinyloxazolidinone of formula (I)

##STR00001##

in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently from one another a hydrogen atom or an organic moiety having 1 to 10 carbon atoms. The reactive diluent (ii) is present in an amount of at least 0.5 wt-% relative to the total amount of reactive diluent (ii) and further reactive diluents.