Alcoxy cross-linking, single-component, moisture-hardening materials

1. An alkoxy-crosslinking one-component composition, comprising:

(A) at least one alkoxysilane-terminated polymer having terminal groups of the general formula (1)

-A-Si(R) a (CH 3 ) 3-a   (1)

and

(B) at least one silane selected from the group consisting of silanes of the formulae (2) to (4)

X—CH 2 —Si(R) a (CH 3 ) 3-a   (2)

R″N[CH 2 —Si(R) a (CH 3 ) 3-a ] 2   (3), and

N[CH 2 —Si(R) a (CH 3 ) 3-a ] 3   (4)

wherein

A is a divalent optionally halogen-substituted C 1-18 hydrocarbon radical,

R is independently methoxy or ethoxy,

R″ is hydrogen, an optionally halogen-substituted cyclic, linear or branched C 1-18 -alkyl or C 6-18 -aryl radical, or an R′—O—CO— or R′—NH—CO— radical,

R′ is an optionally halogen-substituted C 1-8 -hydrocarbon radical, and

a is an integer from 1 to 3, and

wherein X is R″O—.

2. The composition of claim 1 , wherein an alkoxysilane-terminated polymer (A) has terminal groups of the general formula (7)

—NR 1 —CH 2 —Si(R) a (CH 3 ) 3-a   (7)

wherein

R 1 is hydrogen or an optionally halogen-substituted C 1-18 alkyl radical or a C 6-18 aryl radical.

3. The composition of claim 2 , comprising from 0.1 to 20 parts by weight of silane(s) (B) per 100 parts by weight of polymer(s) (A).

4. The composition of claim 3 , further comprising at least one as curing a catalyst component (C) in an amount effective to accelerate the curing of said composition when exposed to water.

5. The composition of claim 2 , further comprising at least one as curing a catalyst component (C) in an amount effective to accelerate the curing of said composition when exposed to water.

6. The composition of claim 2 , wherein at least one polymer (A) is a polymer selected from the group consisting of polyurethane, polyether, polyester, polyacrylate, polyvinyl ester, ethylene/olefin copolymer, styrene/butadiene copolymer and polyolefin, each of said polymers bearing terminal -A-Si(R) a (CH 3 ) 3-a groups.

7. The composition of claim 2 , wherein at least one polymer is a polydiorganosiloxane bearing terminal -A-Si(R) a (CH 3 ) 3-a groups.

8. The composition of claim 1 , comprising from 0.1 to 20 parts by weight of silane(s) (B) per 100 parts by weight of polymer(s) (A).

9. The composition of claim 8 , further comprising at least one as curing a catalyst component (C) in an amount effective to accelerate the curing of said composition when exposed to water.

10. The composition of claim 8 , wherein at least one polymer (A) is a polymer selected from the group consisting of polyurethane, polyether, polyester, polyacrylate, polyvinyl ester, ethylene/olefin copolymer, styrene/butadiene copolymer and polyolefin, each of said polymers bearing terminal -A-Si(R) a (CH 3 ) 3-a groups.

11. The composition of claim 8 , wherein at least one polymer is a polydiorganosiloxane bearing terminal -A-Si(R) a (CH 3 ) 3-a groups.

12. The composition of claim 1 , further comprising at least one as curing a catalyst component (C) in an amount effective to accelerate the curing of said composition when exposed to water.

13. The composition of claim 12 , wherein at least one polymer (A) is a polymer selected from the group consisting of polyurethane, polyether, polyester, polyacrylate, polyvinyl ester, ethylene/olefin copolymer, styrene/butadiene copolymer and polyolefin, each of said polymers bearing terminal -A-Si(R) a (CH 3 ) 3-a groups.

14. The composition of claim 12 , wherein at least one polymer is a polydiorganosiloxane bearing terminal -A-Si(R) a (CH 3 ) 3-a groups.

15. The composition of claim 1 , wherein at least one polymer (A) is a polymer selected from the group consisting of polyurethane, polyether, polyester, polyacrylate, polyvinyl ester, ethylene/olefin copolymer, styrene/butadiene copolymer and polyolefin, each of said polymers bearing terminal -A-Si(R) a (CH 3 ) 3-a groups.

16. The composition of claim 1 , wherein at least one polymer is a polydiorganosiloxane bearing terminal -A-Si(R) a (CH 3 ) 3-a groups.