Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1998-03-20
2000-11-07
Wu, David W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
528 21, C08G 7712
Patent
active
061438553
ABSTRACT:
An organohydridosiloxane polymer having a cage conformation, at least approximately 40 Mole percent carbon containing substituents and a dielectric constant of less than about 2.7 is presented. Each silicon atom of the cage polymer is bonded to at least three oxygen atoms and to either a hydrogen atom or an organic substituent. By providing such a caged structure with essentially no hydroxyl or alkoxy substituents, either on the polymer backbone or at terminal silicon atoms, essentially no chain lengthening polymerization can occur in solution. Such organohydridosiloxane resins having a molecular weight in the range from about 400 to about 200,000 atomic mass units were formed using a dual phase solvent system and either a solid phase or phase transfer catalyst to assist the condensation of hydridotrihalosilane with at least one organotrihalosilane.
REFERENCES:
patent: 2637718 (1953-05-01), Rust
patent: 3615272 (1971-10-01), Collins et al.
patent: 4026868 (1977-05-01), Merrill
patent: 4399266 (1983-08-01), Matsumura et al.
patent: 4609751 (1986-09-01), Hajjar
patent: 4626556 (1986-12-01), Nozue et al.
patent: 4670299 (1987-06-01), Fukuyama et al.
patent: 4694040 (1987-09-01), Hashimoto et al.
patent: 4723978 (1988-02-01), Clodgo et al.
patent: 4749631 (1988-06-01), Haluska et al.
patent: 4753855 (1988-06-01), Haluska et al.
patent: 4756977 (1988-07-01), Haluska et al.
patent: 4808653 (1989-02-01), Haluska et al.
patent: 4822697 (1989-04-01), Haluska et al.
patent: 4847162 (1989-07-01), Haluska et al.
patent: 4849296 (1989-07-01), Haluska et al.
patent: 4895914 (1990-01-01), Saitoh et al.
patent: 4898907 (1990-02-01), Haluska et al.
patent: 4911992 (1990-03-01), Haluska et al.
patent: 4973526 (1990-11-01), Haluska
patent: 4999397 (1991-03-01), Weiss et al.
patent: 5008320 (1991-04-01), Haluska et al.
patent: 5010159 (1991-04-01), Bank et al.
patent: 5045592 (1991-09-01), Weiss et al.
patent: 5059448 (1991-10-01), Chandra et al.
patent: 5063267 (1991-11-01), Hanneman et al.
patent: 5085893 (1992-02-01), Weiss et al.
patent: 5091162 (1992-02-01), Frye et al.
patent: 5106604 (1992-04-01), Agaskar
patent: 5116637 (1992-05-01), Baney et al.
patent: 5118530 (1992-06-01), Hanneman et al.
patent: 5145723 (1992-09-01), Ballance et al.
patent: 5165955 (1992-11-01), Gentle
patent: 5183684 (1993-02-01), Carpenter
patent: 5210168 (1993-05-01), Bergstrom et al.
patent: 5238787 (1993-08-01), Haluska et al.
patent: 5258334 (1993-11-01), Lantz, II
patent: 5262201 (1993-11-01), Chandra et al.
patent: 5279661 (1994-01-01), Gentle
patent: 5283545 (1994-02-01), Pernisz
patent: 5290354 (1994-03-01), Haluska
patent: 5293335 (1994-03-01), Pernisz et al.
patent: 5310583 (1994-05-01), Eckstein et al.
patent: 5312684 (1994-05-01), Michael et al.
patent: 5320868 (1994-06-01), Ballance et al.
patent: 5336532 (1994-08-01), Haluska et al.
patent: 5348839 (1994-09-01), Haluska et al.
patent: 5370903 (1994-12-01), Mine et al.
patent: 5370904 (1994-12-01), Mine et al.
patent: 5372842 (1994-12-01), Mine et al.
patent: 5380567 (1995-01-01), Haluska
patent: 5416190 (1995-05-01), Mine et al.
patent: 5436029 (1995-07-01), Ballance et al.
patent: 5441765 (1995-08-01), Ballance et al.
patent: 5445894 (1995-08-01), Haluska et al.
patent: 5446088 (1995-08-01), Haluska
patent: 5486564 (1996-01-01), Mine et al.
patent: 5523163 (1996-06-01), Ballance et al.
patent: 5540948 (1996-07-01), Haluska
patent: 5547703 (1996-08-01), Camilletti et al.
patent: 5609925 (1997-03-01), Camilletti et al.
patent: 5618878 (1997-04-01), Syktich et al.
patent: 5635240 (1997-06-01), Haluska et al.
patent: 5707681 (1998-01-01), Bremmer et al.
patent: 5707683 (1998-01-01), Currie et al.
patent: 5853808 (1998-12-01), Arkles et al.
patent: 5858544 (1999-01-01), Holl et al.
Hacker, N., "Organic and Inorganic Spin-On Polymers for Low-Dielectic-Constant Applications," MRS Bulletin, vol. 22, No. 10, Oct. 1997, pp. 33-38.
Figge Lisa
Hacker Nigel P.
Lefferts Scott
Allied-Signal Inc.
Lin Aixia
Saxon Roberta
Wu David W.
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