Silicon resin-based binding agents and their use in methods for producing mineral fiber based shaped bodies
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05D-003/02
C08L-083/00
출원번호
US-0471954
(2002-03-28)
우선권정보
DE-101 16 810(2001-04-04)
국제출원번호
PCT/EP02/003576
(2002-03-28)
§371/§102 date
20030915
(20030915)
국제공개번호
WO02/081568
(2002-10-17)
발명자
/ 주소
Rautschek,Holger
Beuschel,G체nter
Deubzer,Bernward
Haneburger,Karin
출원인 / 주소
Wacker Chemie GmbH
대리인 / 주소
Brooks Kushman P.C.
인용정보
피인용 횟수 :
1인용 특허 :
7
초록
Aqueous organopolysiloxane compositions containing a dispersed solid organopolysiloxane resin bearing both alkoxy and hydroxy radicals, a condensation catalyst, and a wetting agent are suitable for use as binders for the preparation of structures based on mineral fibers.
대표청구항▼
What is claimed is: 1. An organopolysiloxane suspension comprising: (A) 100 parts by weight of a pulverulent organopolysiloxane resin comprising units of the formula Ra Si(OR1)b(OH)cO(4-a-b-c)/2 (I), where R each are identical or different monovalent, SiC-bonded, and optionally substituted hyd
What is claimed is: 1. An organopolysiloxane suspension comprising: (A) 100 parts by weight of a pulverulent organopolysiloxane resin comprising units of the formula Ra Si(OR1)b(OH)cO(4-a-b-c)/2 (I), where R each are identical or different monovalent, SiC-bonded, and optionally substituted hydrocarbon radicals, R1 each are identical or different alkyl radicals, a is 0, 1, 2, or 3, and on average 0.8 to 1.5, b is 0, 1, 2, or 3, and on average 0.01 to 0.5, and c is 0, 1, 2 or 3, and on average from 0.01 to 0.4 with the proviso that the sum a+b+c is ≦3, and that the organopolysiloxane resin comprising units of the formula (I) has at least one alkoxy radical and at least one hydroxy radical, (B) from 0.05 to 5 parts by weight of a condensation catalyst, (C) from 0 to 4 parts by weight of an inorganic anti-settling agent, (D) from 0.01 to 4 parts by weight of a wetting agent, (B) from 100 to 10,000 parts by weight of water, and (F) from 0 to 10 parts by weight each of adhesion promoters, polyorganosiloxanes other than those composed of units of the formula (I), preservatives, dyes, fragrances, and mixtures thereof. 2. The organopolysiloxane suspension of claim 1, wherein the glass transition temperature of the organopolysiloxane resin(s) (A) is in the range from 30째 C. to 120째 C. 3. The organopolysiloxane suspension of claim 1, wherein the catalyst (B) comprises at least one siliconate, silanolate, or a mixture thereof. 4. The organopolysiloxane suspension of claim 2, wherein the catalyst (B) used comprises at least one siliconate, silanolate, or a mixture thereof. 5. The organopolysiloxane suspension of claim 1, wherein the inorganic anti-settling agent (C) is present in an amount of from 0.5 to 2 parts by weight per 100 parts of silicone resin (A). 6. An organopolysiloxane suspension comprising: (A) 100 parts by weight of a pulverulent organopolysiloxane resin comprising units of the formula Ra Si(OR1)b(OH)cO(4-a-b-c)/2 (I), where R each are identical or different monovalent, SiC-bonded, and optionally substituted hydrocarbon radicals, R1 each are identical or different alkyl radicals, a is 0, 1, 2, or 3, b is 0, 1, 2, or 3, and c is 0, 1, 2 or 3, with the proviso that the sum a+b+c is ≦3, and that the organopolysiloxane resin comprising units of the formula (I) has at least one alkoxy radical and at least one hydroxy radical, (B) from 0.05 to 5 parts by weight of a condensation catalyst, (C) from 0 to 4 parts by weight of an inorganic anti-settling agent, (D) from 0.01 to 4 parts by weight of a wetting agent, (E) from 20 to 2,000 parts by weight of water, and (F) from 0 to 2 parts by weight each of adhesion promoters, polyorganosiloxanes other than those composed of units of the formula (I), preservatives, dyes, fragrances, and mixtures thereof, wherein the wetting agent (D) is a polyether polysiloxane comprising units of the general formula (R2 O)dSiGeR6fO(4-d-e-f)/2 (III) where R6 are each identical or different radicals R, R2 are each identical or different radicals R1 or hydrogen, G are each identical or different radicals of the formula --(CH 2)x(OCyH2y)zOR3 (IV) where R3 is a hydrogen atom, or an alkyl or acyl radical having from 1 to 4 carbon atoms, x is a number from 2 to 10, y is 2, 3, or 4, and z is from 1 to 100, d is 0, 1, 2, or 3, e is 0, 1, 2, or 3, and f is 0, 1, 2, or 3, with the proviso that the sum d+e+f is less than or equal to 3, and that the siloxane composed of units of the formula (III) has at least one radical G. 7. The organopolysiloxane suspension of claim 6, wherein d is on average 0 to 0.5, e is on average 0.05 to 0.5, and f is on average 1.5 to 2.0. 8. In a process for producing moldings containing inorganic fibers by adding binder to fibers to form an intermediate fiber product, shaping the intermediate fiber product, and curing, the improvement comprising selecting as a binder, an organopolysiloxane suspension of claim 1. 9. The process of claim 8, wherein the organopolysiloxane suspension is sprayed continuously onto mineral fibers which are still hot from their preparation, drying the resultant treated fiber product, compressing to the desired density, and curing the silicone resin by heating. 10. A molding produced from mineral fibers and from at least one binder, wherein the binder comprises at least one organopolysiloxane suspension of claim 1. 11. An organopolysiloxane suspension comprising: (A) 100 parts by weight of a pulverulent organopolysiloxane resin comprising units of the formula Ra Si(OR1)b(OH)cO(4-a-b-c)/2 (I), where R each are identical or different monovalent, SiC-bonded, and optionally substituted hydrocarbon radicals, R1 each are identical or different alkyl radicals, a is 0, 1, 2, or 3, b is 0, 1, 2, or 3, and c is 0, 1, 2 or 3, with the proviso that the sum a+b+c is ≦3, and that the organopolysiloxane resin comprising units of the formula (I) has at least one alkoxy radical and at least one hydroxy radical, (B) from 0.05 to 5 parts by weight of a condensation catalyst comprising at least one of an ammonium, sodium, or potassium siliconate, or an ammonium, sodium, or potassium silanolate, (C) a phyllosilicate anti-settling agent in an amount greater than 0 and less than 4 parts by weight, (D) from 0.01 to 4 parts by weight of a wetting agent, (E) from 100 to 10,000 parts by weight of water, and (F) from 0 to 10 parts by weight each of adhesion promoters, polyorganosiloxanes other than those composed of units of the formula (I), preservatives, dyes, fragrances, and mixtures thereof. 12. An organopolysiloxane suspension comprising: (A) 100 parts by weight of a pulverulent organopolysiloxane resin comprising units of the formula Ra Si(OR1)b(OH)cO(4-a-b-c)/2 (I), where R each are identical or different monovalent, SiC-bonded, and optionally substituted hydrocarbon radicals, R1 each are identical or different alkyl radicals, a is 0, 1, 2, or 3, b is 0, 1, 2, or 3, and c is 0, 1, 2 or 3, with the proviso that the sum a+b+c is 3, and that the organopolysiloxane resin comprising units of the formula (I) has at least one alkoxy radical and at least one hydroxy radical, (B) a water soluble condensation catalyst in an amount 0.05 to 5 parts by weight, said condensation catalyst comprising at least one of an ammonium, sodium, or potassium siliconate, or an ammonium, sodium, or potassium silanolate (C) from 0 to 4 parts by weight of an inorganic anti-settling agent, (D) from 0.01 to 4 parts by weight of a wetting agent, (B) from 20 to 2,000 parts by weight of water, and (F) from 0 to 2 parts by weight each of adhesion promoters, polyorganosiloxanes other than those composed of units of the formula (I), preservatives, dyes, fragrances, and mixtures thereof. 13. The organopolysiloxane suspension of claim 1, wherein the catalyst (B) comprises an ammonium, sodium, or potassium siliconate, or an ammonium, sodium, or potassium silanolate. 14. The organopolysiloxane suspension of claim 1, wherein the glass transition temperature of the organopolysiloxane resin is from 40 to 85째 C. 15. The organopolysiloxane suspension of claim 11, wherein the glass transition temperature of the organopolysiloxane resin is from 30 to 125째 C. 16. The organopolysiloxane suspension of claim 12, wherein the glass transition temperature of the organopolysiloxane resin is from 30 to 125째 C. 17. The organopolysiloxane suspension of claim 12, wherein the glass transition temperature of the organopolysiloxane resin is from 40 to 85째 C. 18. A molding produced from mineral fibers and from at least one binder, wherein the binder comprises at least one organopolysiloxane suspension of claim 11. 19. A molding produced from mineral fibers and from at least one binder, wherein the binder comprises at least one organopolysiloxane suspension of claim 12.
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이 특허에 인용된 특허 (7)
Braun Rudolf (Kastl DEX) Braunsperger Karl (Burghausen DEX) Sllradl Herbert (Emmerting DEX) Wolfgruber Matthias (Burghausen DEX), Aqueous dispersions of organopolysiloxanes.
Demlehner Ulrich (Kastl DEX) Deubzer Bernward (Burghausen DEX) Mayer Hans (Burghausen DEX) Pilzweger Erich (Fulbach DEX), Process for preparing aqueous emulsions of high-molecular-weight organopolysiloxanes.
Wolfgruber Matthias (Burghausen DEX) Deubzer Bernward (Burghausen DEX) Frey Volker (Burghausen DEX), Silicone resin powder and a process for preparing the same.
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