Dental impression material composition

Details Dental impression material composition Dental impression material composition

2005-03-01

2005-03-01

Yoon, Tae H. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S730000, C528S031000, C528S032000

Reexamination Certificate

active

06861457

ABSTRACT:
To provide a dental impression material composition having high hydrophilicity comparable to that of polyether rubber-made impression materials, being superior in recovery from deformation caused by removal out of an oral cavity, which are similar to silicone rubber-made impression materials, the dental impression material composition being superior in dimensional precision, and good in storage stability. The dental impression material composition includes (A) 100 parts by weight of the sum of (1) an organopolysiloxane containing at least two aliphatic unsaturated hydrocarbons in one molecule and (2) a polyether containing at least one aliphatic unsaturated hydrocarbon in one molecule, in a weight ratio of (1) to (2) of 1:0.01˜1:5, having (B) 0.1˜100 parts by weight of an organohydrogenpolysiloxane containing at least three hydrogen atoms directly bonded to a silicon atom in one molecule, (C) 10˜500 ppm, based on the sum of (A) and (B), of a silicone-soluble platinum compound, (D) 10˜800 parts by weight of an inorganic filler, and (E) 0.5˜5 parts by weight of a nonionic surfactant and/or a polyether-modified silicone oil, compounded therewith.

REFERENCES:
patent: 5637628 (1997-06-01), Kamohara et al.
patent: 5849812 (1998-12-01), Zech et al.
patent: 5907002 (1999-05-01), Kamohara et al.
patent: 2 337 524 (1999-11-01), None
patent: WO 9632088 (1996-10-01), None
Derwent Publications, JP 04-353564, Dec. 8, 1992.

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