A composition is provided that includes aliphatic urethane acrylate; a multifunctional crosslinking agent; photoinitiator; a chemical initiator system of a peroxide or azo group containing catalyst, and a cure promoter; and a particulate filler. The composition is amenable to rapid cure to a sandable condition as compared to conventional products. By adjusting the amount of particulate filler present, a product is provided that operates as a primer, a putty, or a filler. A method of vehicle body repair includes the application of an uncured layer of the composition to the vehicle body. The uncured layer is exposed to UV radiation to induce cure of the uncured layer to form a coating in a time of between 2 and 20 minutes even with an ultraviolet wavelength emitting light emitting diode (UV LED).

An object of the present invention is to provide a masking material having excellent peeling properties even if the drying step is reduced, preferably without the drying step. There is provided a curable composition comprising: (A1) a prepolymer represented by (Formula1): (CH.sub.2?C(R.sup.1)COOR.sup.2OCONHR.sup.3NHCO).sub.nR.sup.4 wherein each of R is independently a hydrogen atom or a methyl group, each of R.sup.2 is independently an aliphatic group having 1 to 8 carbon atoms, each of R.sup.3 is independently an aromatic or aliphatic group having 1 to 30 carbon atoms and R.sup.4 is an aromatic or aliphatic group having a number average molecular weight at least 500 and having a polycarbonate backbone and/or a polyester backbone and n is an integer from 2 to 4 and (A2) a non-polymer represented by (Formula2): (CH.sub.2?C(R.sup.5)COOR.sup.6OCONH).sub.mR.sup.7 wherein each of R.sup.5 is independently a hydrogen atom or a methyl group, each of R.sup.6 is independently an aliphatic group having 1 to 8 carbon atoms. R.sup.7 is independently an aromatic or aliphatic group having 1 to 30 carbon atoms and m is an integer from 2 to 4.

An object of the present invention is to provide a masking material having excellent peeling properties even if the drying step is reduced, preferably without the drying step. There is provided a curable composition comprising: (A1) a prepolymer represented by (Formula1): (CH.sub.2?C(R.sup.1)COOR.sup.2OCONHR.sup.3NHCO).sub.nR.sup.4 wherein each of R is independently a hydrogen atom or a methyl group, each of R.sup.2 is independently an aliphatic group having 1 to 8 carbon atoms, each of R.sup.3 is independently an aromatic or aliphatic group having 1 to 30 carbon atoms and R.sup.4 is an aromatic or aliphatic group having a number average molecular weight at least 500 and having a polycarbonate backbone and/or a polyester backbone and n is an integer from 2 to 4 and (A2) a non-polymer represented by (Formula2): (CH.sub.2?C(R.sup.5)COOR.sup.6OCONH).sub.mR.sup.7 wherein each of R.sup.5 is independently a hydrogen atom or a methyl group, each of R.sup.6 is independently an aliphatic group having 1 to 8 carbon atoms. R.sup.7 is independently an aromatic or aliphatic group having 1 to 30 carbon atoms and m is an integer from 2 to 4.

An object of the present invention is to provide a golf ball having oily stain washability or weed juice stain resistance that is adjustable depending on a temperature. The present invention provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and covering the golf ball body, wherein a molecular chain of a base resin constituting an outermost layer located at an outermost side of the paint film has a graft chain, and 80 mole % or more of repeating units constituting the graft chain includes any one of repeating units represented by formulae (1) to (4): ##STR00001## [In the formulae (1) to (4), R.sup.1 to R.sup.5 each independently represent hydrogen, halogen or an organic group.].

An object of the present invention is to provide a golf ball having oily stain washability or weed juice stain resistance that is adjustable depending on a temperature. The present invention provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and covering the golf ball body, wherein a molecular chain of a base resin constituting an outermost layer located at an outermost side of the paint film has a graft chain, and 80 mole % or more of repeating units constituting the graft chain includes any one of repeating units represented by formulae (1) to (4): ##STR00001## [In the formulae (1) to (4), R.sup.1 to R.sup.5 each independently represent hydrogen, halogen or an organic group.].

The present invention relates to aqueous polyurethane-vinyl polymer hybrid dispersions which are prepared by polymerisation, initiated by free radicals, of ethylenically unsaturated monomers and polyurethane prepolymers containing acid groups and hydroxyl groups, to a method for their preparation, and to their use particularly as coating binder in multilayer coatings.

This disclosure relates to a dual-cure resin composition comprising (a) at least one photo-polymerizable compound; (b) at least one uretdione-containing compound having an average uretdione ring functionality of greater than 1; (c) at least one compound containing at least one isocyanate-reactive group; and (d) at least one photoinitiator; to a process of forming 3D objects by using the composition, to use of the composition for forming 3D objects and to 3D objects formed by using the composition.

This disclosure relates to a dual-cure resin composition comprising (a) at least one photo-polymerizable compound; (b) at least one uretdione-containing compound having an average uretdione ring functionality of greater than 1; (c) at least one compound containing at least one isocyanate-reactive group; and (d) at least one photoinitiator; to a process of forming 3D objects by using the composition, to use of the composition for forming 3D objects and to 3D objects formed by using the composition.

A process for producing an object from a precursor comprises the steps of: depositing a free-radically crosslinked resin atop a carrier to obtain a ply of a construction material joined to the carrier which corresponds to a first selected cross section of the precursor; depositing a free-radically crosslinked resin atop a previously applied ply of the construction material to obtain a further ply of the construction material which corresponds to a further selected cross section of the precursor and which is joined to the previously applied ply; repeating step II) until the precursor is formed; wherein the depositing of a free-radically crosslinked resin at least in step II) is effected by exposure and/or irradiation of a selected region of a free-radically crosslinkable resin corresponding to the respectively selected cross section of the object and wherein the free-radically crosslinkable resin has a viscosity (23 C., DIN EN ISO 2884-1) of 5 mPas to 100000 mPas. In the process the free-radically crosslinkable resin comprises a curable component in which NCO groups and olefinic CC double bonds are present, wherein in the curable component the molar ratio of NCO groups to olefinic CC double bonds is in a range from 1:5 to 5:1.

The present invention relates to curable polyurethane polymers made from renewable materials. In particular isosorbide derived from glucose is used. These renewable materials may be formed into curable polyurethane polymer compositions having different chemical functionalities and cure mechanisms.