The present invention aims to provide a resin composition for molding that makes it possible to achieve excellent continuous productivity and to produce a molded article having high surface smoothness, capable of reducing defective molding, less likely to crack during use, and also having excellent shock resistance. The present invention also aims to provide a molded article including the resin composition for molding. Provided is a resin composition for molding, containing: a chlorinated polyvinyl chloride resin; and a melt additive, the resin composition containing three components including a A.sub.100 component, a B.sub.100 component, and a C.sub.100 component, and having a percentage of the C.sub.100 component [C.sub.100 component/(A.sub.100 component+B.sub.100 component+C.sub.100 component)] of 30% or less, the three components being identified by measuring the resin composition by a solid echo method using pulse NMR at 100° C. to give a free induction decay curve of .sup.1H spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into three curves derived from the A.sub.100 component, the B.sub.100 component, and the C.sub.100 component in order of shorter relaxation time using the least square method.

A moisture curable composition capable of cure to an elastomeric body, the composition comprising: (i) an organopolysiloxane polymer having at least two silicon-bonded hydroxyl or hydrolysable groups per molecule and a viscosity of from 1,000 to 75,000 maPa.Math.s at 25° C.; (ii) a siloxane and/or silane cross-linker; (iii) an organosilicate resin comprising SiO.sub.4/2 (Q) siloxane units and R.sup.2.sub.3SiO.sub.1/2 (M) siloxane units wherein each R.sup.2 is selected from hydrocarbon groups, —OH and/or alkoxy containing groups and which M groups are reactive with components (i) and/or (ii); and (iv)_a condensation cure catalyst. The organosilicate resin (iii) is generally used to reinforce the composition.

A moisture curable composition capable of cure to an elastomeric body, the composition comprising: (i) an organopolysiloxane polymer having at least two silicon-bonded hydroxyl or hydrolysable groups per molecule and a viscosity of from 1,000 to 75,000 maPa.Math.s at 25° C.; (ii) a siloxane and/or silane cross-linker; (iii) an organosilicate resin comprising SiO.sub.4/2 (Q) siloxane units and R.sup.2.sub.3SiO.sub.1/2 (M) siloxane units wherein each R.sup.2 is selected from hydrocarbon groups, —OH and/or alkoxy containing groups and which M groups are reactive with components (i) and/or (ii); and (iv)_a condensation cure catalyst. The organosilicate resin (iii) is generally used to reinforce the composition.

A silicone elastomer composition which is generally storage stable, and cures to an elastomeric body, comprising; (i) an organopolysiloxane polymer having at least two hydroxyl or hydrolysable groups; (ii) a siloxane and/or silane cross-linker having at least three groups per molecule which are reactable with the hydroxyl or hydrolysable groups in the organopolysiloxane polymer (i); (iii) a solid organosilicate resin which is substantially unreactive with components (i) and (ii) and comprising R.sub.3.sup.2SiO.sub.1/2 and SiO.sub.4/2 siloxane units, wherein the molar ratio of the R.sub.3.sup.2SiO.sub.1/2 siloxane units to SiO.sub.4/2 siloxane units is from 0.5:1 to 1.2:1, and R.sup.2 is selected from hydrocarbon groups; and optionally (iv) a suitable condensation cure catalyst. The solid organosilicate resin (iii) is generally utilised to create a low modulus room temperature vulcanisable (RTV) silicone composition which when cured may be used as a coating, an adhesive or a sealant having high movement capability.

A silicone elastomer composition which is generally storage stable, and cures to an elastomeric body, comprising; (i) an organopolysiloxane polymer having at least two hydroxyl or hydrolysable groups; (ii) a siloxane and/or silane cross-linker having at least three groups per molecule which are reactable with the hydroxyl or hydrolysable groups in the organopolysiloxane polymer (i); (iii) a solid organosilicate resin which is substantially unreactive with components (i) and (ii) and comprising R.sub.3.sup.2SiO.sub.1/2 and SiO.sub.4/2 siloxane units, wherein the molar ratio of the R.sub.3.sup.2SiO.sub.1/2 siloxane units to SiO.sub.4/2 siloxane units is from 0.5:1 to 1.2:1, and R.sup.2 is selected from hydrocarbon groups; and optionally (iv) a suitable condensation cure catalyst. The solid organosilicate resin (iii) is generally utilised to create a low modulus room temperature vulcanisable (RTV) silicone composition which when cured may be used as a coating, an adhesive or a sealant having high movement capability.

Through the present invention, by undergoing a step in which a straight-chain diorganopolysiloxane having silanol groups at both terminal ends of the molecular chain thereof, a hydrolyzable silane and/or a partial hydrolysis condensate thereof having a hydrolyzable group capable of detaching a lactic acid ester, and an amino-group-containing hydrolyzable organosilane and/or a partial hydrolysis condensate thereof are pre-mixed/reacted in advance and silanol groups at both terminal ends of the molecular chain of a main agent (base polymer) are blocked by specific hydrolyzable silyl groups, it is possible to manufacture a lactic-acid-ester-type room-temperature-curable organopolysiloxane composition excellent in all characteristics including curability, adhesive properties, workability, and the like that were not attainable by the conventional lactic-acid-ester-type room-temperature curable (RTV) silicone rubber composition.

Through the present invention, by undergoing a step in which a straight-chain diorganopolysiloxane having silanol groups at both terminal ends of the molecular chain thereof, a hydrolyzable silane and/or a partial hydrolysis condensate thereof having a hydrolyzable group capable of detaching a lactic acid ester, and an amino-group-containing hydrolyzable organosilane and/or a partial hydrolysis condensate thereof are pre-mixed/reacted in advance and silanol groups at both terminal ends of the molecular chain of a main agent (base polymer) are blocked by specific hydrolyzable silyl groups, it is possible to manufacture a lactic-acid-ester-type room-temperature-curable organopolysiloxane composition excellent in all characteristics including curability, adhesive properties, workability, and the like that were not attainable by the conventional lactic-acid-ester-type room-temperature curable (RTV) silicone rubber composition.

The invention relates to a composition and a method for producing moisture-crosslinking silicones with catalysis by at least two different catalysts A and B, a related process and the use of the composition, in particular, in sealants, adhesives, joint compounds or coating agents.

The invention relates to a composition and a method for producing moisture-crosslinking silicones with catalysis by at least two different catalysts A and B, a related process and the use of the composition, in particular, in sealants, adhesives, joint compounds or coating agents.

A moisture-curable composition, including at least one organic polymer P containing reactive silane groups, between 1.0 wt.-% and 25.0 wt.-%, preferably between 2.0 wt.-% and 20 wt.-%, in particular between 2.5 wt.-% and 10 wt.-%, based on the total composition, of dimethyl or diethyl esters of aliphatic C3 to C5 dicarboxylic acids, and at least one curing catalyst for alkoxysilane groups. The moisture-curable composition is particularly suitable as elastic adhesive, coating, filler, or sealant and shows superior overpaintability, in particular with automotive topcoats or similar paints.