Provided is a laminate which comprises a layer of a polyimide resin and a layer of an unvulcanized rubber composition, and wherein the rubber composition contains (A) a rubber component, (B) 20-100 parts by mass of a polyamide polyether elastomer per 100 parts by mass of the rubber component (A), (C) a condensation product of formaldehyde and a compound represented by formula (1) (wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 is independently selected from the group consisting of a hydrogen atom, a hydroxyl group, an alkyl group having 1-8 carbon atoms, a hydroxyalkyl group having 1-8 carbon atoms and an alkoxide group having 1-8 carbon atoms), (D) a methylene donor and (E) a vulcanizing agent. A laminate according to the present invention exhibits improved bonding strength between a layer of a polyimide resin and a layer of a rubber composition.

Provided is a laminate which comprises a layer of a polyimide resin and a layer of an unvulcanized rubber composition, and wherein the rubber composition contains (A) a rubber component, (B) 20-100 parts by mass of a polyamide polyether elastomer per 100 parts by mass of the rubber component (A), (C) a condensation product of formaldehyde and a compound represented by formula (1) (wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 is independently selected from the group consisting of a hydrogen atom, a hydroxyl group, an alkyl group having 1-8 carbon atoms, a hydroxyalkyl group having 1-8 carbon atoms and an alkoxide group having 1-8 carbon atoms), (D) a methylene donor and (E) a vulcanizing agent. A laminate according to the present invention exhibits improved bonding strength between a layer of a polyimide resin and a layer of a rubber composition.

A curable aminoplast acrylic polyol composition containing, calculated as solids on all the solids of the composition, (a) 50 to 85% by weight of at least one type of an acrylic polyol having a glass transition temperature Tg of from 15 to <50 C., an equivalent weight of hydroxyl groups on solids of from 330 to 420, a hydroxyl number on solids of from 120 to 180 mg KOH/g, and a number average of the molecular weight (Mn) of 1,000 to 3,000 Dalton, and (b) 15 to 50% by weight of an alkylated amino formaldehyde resin having a formaldehyde content in accordance with DIN EN ISO 11402 4.3 of less than 0.10%, and the amino compound is melamine, guanamine, benzoguanamine, urea, toluenesulfonamide and glycoluril, and the alkylated amino formaldehyde resin containing at least one type of alkyl groups having 1 to 12 carbon atoms, and (c) 0.5 to 5.0% by weight of at least one type of an acidic catalyst, together with a process of for preparation of the composition and methods of using the composition.

A curable aminoplast acrylic polyol composition containing, calculated as solids on all the solids of the composition, (a) 50 to 85% by weight of at least one type of an acrylic polyol having a glass transition temperature Tg of from 15 to <50 C., an equivalent weight of hydroxyl groups on solids of from 330 to 420, a hydroxyl number on solids of from 120 to 180 mg KOH/g, and a number average of the molecular weight (Mn) of 1,000 to 3,000 Dalton, and (b) 15 to 50% by weight of an alkylated amino formaldehyde resin having a formaldehyde content in accordance with DIN EN ISO 11402 4.3 of less than 0.10%, and the amino compound is melamine, guanamine, benzoguanamine, urea, toluenesulfonamide and glycoluril, and the alkylated amino formaldehyde resin containing at least one type of alkyl groups having 1 to 12 carbon atoms, and (c) 0.5 to 5.0% by weight of at least one type of an acidic catalyst, together with a process of for preparation of the composition and methods of using the composition.

Aspects of the present disclosure relate to Schiff base oligomers and uses thereof In at least one aspect, an oligomer is represented by Formula (IV) wherein each instance of R.sup.9 is independently selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl, and ether. Each instance of R.sup.28 and R.sup.29 of Formula (IV) is independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, and aryl. Each instance of R.sup.33 of Formula (IV) is independently selected from the group consisting of alkyl, cycloalkyl, aryl, heterocyclyl, and a bond. Each instance of R.sup.41 of Formula (IV) is independently NH or a bond and each instance of R.sup.40 is independently NH or NHNH. Each instance of R.sup.42 of Formula (IV) is independently NH or a bond and each instance of R.sup.43 is independently NH or NHNH.

A curable aminoplast acrylic polyol composition containing, based on the complete weight of the solids of the composition, (a) 50 to 85% by weight of an acrylic polyol having a glass transition temperature Tg of from 50 to 70 C., an equivalent weight of hydroxyl groups on solids of from 320 to 400, and a hydroxyl number on solids of from 130 to 180 mg KOH/g, (b) 15 to 50% by weight of an alkylated amino formaldehyde resin having a formaldehyde content in accordance with DIN EN ISO 11402 4.3 of less than 0.10%, and the amino compound is melamine, guanamine, benzoguanamine, urea, toluenesulfonamide and glycoluril, containing at least two types of alkyl groups having 1 to 12 carbon atoms, and (c) 0.5 to 5.0% by weight of at least one type of an acidic catalyst, together with a process for preparation of the composition and methods of using the composition.

A curable aminoplast acrylic polyol composition containing, based on the complete weight of the solids of the composition, (a) 50 to 85% by weight of an acrylic polyol having a glass transition temperature Tg of from 50 to 70 C., an equivalent weight of hydroxyl groups on solids of from 320 to 400, and a hydroxyl number on solids of from 130 to 180 mg KOH/g, (b) 15 to 50% by weight of an alkylated amino formaldehyde resin having a formaldehyde content in accordance with DIN EN ISO 11402 4.3 of less than 0.10%, and the amino compound is melamine, guanamine, benzoguanamine, urea, toluenesulfonamide and glycoluril, containing at least two types of alkyl groups having 1 to 12 carbon atoms, and (c) 0.5 to 5.0% by weight of at least one type of an acidic catalyst, together with a process for preparation of the composition and methods of using the composition.

A matte clear coating composition for an aluminum member, comprising acrylic resin (A) having a hydroxy value of 100 to 200 mgKOH/g; melamine resin (B); silica particles (C) having an average particle size of 1.0 to 15 m; and polyolefin wax (D) having an average particle size of 10 to 40 m and a melting point of 145 C. to 180 C., the matte clear coating composition comprising 5 to 20 mass % of silica particles (C) and 3 to 15 mass % of polyolefin wax (D) based on the total solids content of acrylic resin (A) and melamine resin (B). The matte clear coating composition for an aluminum member satisfies both corrosion resistance and abrasion resistance (scratch resistance).

A matte clear coating composition for an aluminum member, comprising acrylic resin (A) having a hydroxy value of 100 to 200 mgKOH/g; melamine resin (B); silica particles (C) having an average particle size of 1.0 to 15 m; and polyolefin wax (D) having an average particle size of 10 to 40 m and a melting point of 145 C. to 180 C., the matte clear coating composition comprising 5 to 20 mass % of silica particles (C) and 3 to 15 mass % of polyolefin wax (D) based on the total solids content of acrylic resin (A) and melamine resin (B). The matte clear coating composition for an aluminum member satisfies both corrosion resistance and abrasion resistance (scratch resistance).

Processes of making a non-woven glass fiber mat are described. The process may include forming an aqueous dispersion of fibers. The process may also include passing the dispersion through a mat forming screen to form a wet mat. The process may further include applying a carbohydrate binder composition to the wet mat to form a binder-containing wet mat. The binder compositions may include a carbohydrate, a nitrogen-containing compound, and a thickening agent. The binder compositions may have a Brookfield viscosity of 7 to 50 centipoise at 20? C. The thickening agents may include modified celluloses such as hydroxyethyl cellulose (HEC) and carboxymethyl cellulose (CMC), and polysaccharides such as xanthan gum, guar gum, and starches. The process may include curing the binder-containing wet mat to form the non-woven glass fiber mat.