US4191622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for producing stereo-regular polymers
Assignee: Ranbar Electrical Materials Inc
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Filing: 1975-07-28
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Granted: 1980-03-04
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Expires: 1995-07-28
Abstract
Abstract Stereo-regular polymers are produced by forming a moving stream of gaseous monomer having an electric dipole moment, irradiating the monomer with monochromatic light of a wavelength suitable for activating it, and orientating the activated monomer in an electric field. The activated, orientated monomer then polymerizes to form a stereo-regular polymer. Alternatively, a monomer of the general formula ##STR1## can be used, where at least one of the R groups, the resonating R group, forms an electric dipole moment with the remainder of the monomer. The monomer is then irradiated with a monochromatic light beam having a frequency which resonates with a harmonic frequency resulting from the bond between the resonating R group and the remainder of the monomer. Activation of that particular bond on that particular type of monomer results in a stereo-regular polymer. For best results, however, the two methods are combined.
Inventors
- 👤 David C. Phillips
- 👤 Max Garbuny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:01
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
96 words
A method of producing stereo-regular polymers from a gaseous monomer having the general formula: ##STR4## where each R is independently selected from hydrogen, alkyl to C 6 , aryl, and alkylene, subject to the condition that at least one R group, the resonating R group, be a group which forms a permanent electric dipole moment with the remainder of the monomer, comprising irradiating said monomer with laser light which is nearly monochromatic of a frequency which resonates with a harmonic frequency resulting from the band between said resonating R group to the remainder of said monomer.
Claim 2
Independent Claim
96 words
A method of producing stereo-regular polymers from a gaseous monomer having the general formula: ##STR4## where each R is independently selected from hydrogen, alkyl to C 6 , aryl, and alkylene, subject to the condition that at least one R group, the resonating R group, be a group which forms a permanent electric dipole moment with the remainder of the monomer, comprising irradiating said monomer with laser light which is nearly monochromatic of a frequency which resonates with a harmonic frequency resulting from the band between said resonating R group to the remainder of said monomer.
Claim 3
Dependent Claim
20 words
A method according to claim 1 wherein said resonating R group is ionically bonded to the remainder of said monomer.
Claim 4
Dependent Claim
13 words
A method according to claim 2 wherein said resonating R group is halogen.
Claim 5
Dependent Claim
11 words
A method according to claim 3 wherein said halogen is chlorine.
Claim 6
Dependent Claim
22 words
A method according to claim 4 wherein said monomer is vinyl chloride and said light frequency is about 720 cm -1 .
Claim 7
Dependent Claim
35 words
A method according to claim 1 wherein said monomer moves in a unidirectional stream with the forward component of velocity greater than the lateral component, and said monochromatic light is perpendicular to said monomer stream.
Claim 8
Dependent Claim
28 words
A method according to claim 1 including producing an electric field across said monomers after they have been irradiated by said light of sufficient strength to orientate them.
Claim 9
Dependent Claim
18 words
A method according to claim 1 wherein said stereo-regular polymers are collected and removed by a moving belt.
Claim 10
Independent Claim
57 words
A method of producing stereo-regular polymers comprising: (A) producing a moving stream of gaseous unsaturated monomer having an electric dipole moment; (B) irradiating said moving stream with laser light which is nearly monochromatic of a frequency suitable for activating said monomer; and (C) producing an electric field across said activated monomer sufficient to orientate said activated monomer.
Claim 11
Independent Claim
57 words
A method of producing stereo-regular polymers comprising: (A) producing a moving stream of gaseous unsaturated monomer having an electric dipole moment; (B) irradiating said moving stream with laser light which is nearly monochromatic of a frequency suitable for activating said monomer; and (C) producing an electric field across said activated monomer sufficient to orientate said activated monomer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |