Process for preparing a reinforced rubber composition, said process comprising the step mixing, at a temperature of at least 120° C., at least the following compounds: (i) a rubber, (ii) at least one inorganic filler, (iii) at least one organic peroxide, and (iv) at least one anti-oxidant selected from phenolics, para-phenylidene diamines, and nitroxides.

Process for preparing a reinforced rubber composition, said process comprising the step mixing, at a temperature of at least 120° C., at least the following compounds: (i) a rubber, (ii) at least one inorganic filler, (iii) at least one organic peroxide, and (iv) at least one anti-oxidant selected from phenolics, para-phenylidene diamines, and nitroxides.

Process for preparing a reinforced rubber composition, said process comprising the step mixing, at a temperature of at least 120° C., at least the following compounds: (i) a rubber, (ii) at least one inorganic filler, (iii) at least one organic peroxide, and (iv) at least one anti-oxidant selected from phenolics, para-phenylidene diamines, and nitroxides.

A curable composition includes a polymer (A) including a structural unit represented by the following general formula (I), and a polythiol compound (B) having at least two thiol groups in one molecule:

##STR00001##

wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an aralkyl group having 7 to 18 carbon atoms, R.sup.4 represents a hydrogen atom or a methyl group, and n is an arbitrary integer equal to or greater than 0, and wherein at least one of R.sup.1, R.sup.2 and R.sup.3 is one of the above groups having one or more carbon atoms and/or n is an integer equal to or greater than 1. The curable composition is excellent in curability and provides a flexible cured product.

A curable composition includes a polymer (A) including a structural unit represented by the following general formula (I), and a polythiol compound (B) having at least two thiol groups in one molecule:

##STR00001##

wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an aralkyl group having 7 to 18 carbon atoms, R.sup.4 represents a hydrogen atom or a methyl group, and n is an arbitrary integer equal to or greater than 0, and wherein at least one of R.sup.1, R.sup.2 and R.sup.3 is one of the above groups having one or more carbon atoms and/or n is an integer equal to or greater than 1. The curable composition is excellent in curability and provides a flexible cured product.

A curable composition includes a polymer (A) including a structural unit represented by the following general formula (I), and a polythiol compound (B) having at least two thiol groups in one molecule:

##STR00001##

wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an aralkyl group having 7 to 18 carbon atoms, R.sup.4 represents a hydrogen atom or a methyl group, and n is an arbitrary integer equal to or greater than 0, and wherein at least one of R.sup.1, R.sup.2 and R.sup.3 is one of the above groups having one or more carbon atoms and/or n is an integer equal to or greater than 1. The curable composition is excellent in curability and provides a flexible cured product.

The present disclosure relates to a UV-curable composition and adhesive film, adhesive tape and bonding member containing the same. Said UV-curable composition is a UV-curable composition catalyzable by photobase. Said UV-curable composition comprises (1) acrylic polymer and/or ethylene-vinyl acetate copolymer; (2) curable components, comprising polyfunctional mercaptan and polyfunctional epoxy resin; and a (3) photobase generator. The composition of the present disclosure can be coated into an adhesive tape or adhesive film; such adhesive tape or film possesses initial adhesion before UV curing is carried out and can have the strength of a semi-structural adhesive or a structural adhesive after UV curing is carried out.

The present disclosure relates to a UV-curable composition and adhesive film, adhesive tape and bonding member containing the same. Said UV-curable composition is a UV-curable composition catalyzable by photobase. Said UV-curable composition comprises (1) acrylic polymer and/or ethylene-vinyl acetate copolymer; (2) curable components, comprising polyfunctional mercaptan and polyfunctional epoxy resin; and a (3) photobase generator. The composition of the present disclosure can be coated into an adhesive tape or adhesive film; such adhesive tape or film possesses initial adhesion before UV curing is carried out and can have the strength of a semi-structural adhesive or a structural adhesive after UV curing is carried out.

The present disclosure relates to a UV-curable composition and adhesive film, adhesive tape and bonding member containing the same. Said UV-curable composition is a UV-curable composition catalyzable by photobase. Said UV-curable composition comprises (1) acrylic polymer and/or ethylene-vinyl acetate copolymer; (2) curable components, comprising polyfunctional mercaptan and polyfunctional epoxy resin; and a (3) photobase generator. The composition of the present disclosure can be coated into an adhesive tape or adhesive film; such adhesive tape or film possesses initial adhesion before UV curing is carried out and can have the strength of a semi-structural adhesive or a structural adhesive after UV curing is carried out.

Compositions for modifying a degree of cure in a polysulfide sealant are provided. In embodiments, the composition comprises a water-miscible organic solvent; water; and a dithiol. Polysulfide sealant systems comprising the compositions are also provided. Methods for modifying a degree of cure in a polysulfide sealant using the compositions are also provided.