US4578166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of actinic irradiation of shaped polyester imide containing benzophenone tetracarboxylic diimide group and cross-linked product
Assignee: Toyobo Co Ltd
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Filing: 1983-04-13
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Granted: 1986-03-25
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Expires: 2003-04-13
Abstract
Abstract A shaped article made of a polymeric composition comprising as the essential component a saturated linear polyester or polyamide comprising a structural unit of the formula: ##STR1## wherein R 1 and R 2 are same or different and each represents a monovalent organic group such as a monovalent aliphatic, alicyclic or aromatic group having one or more carbon atoms (preferably 1 to 20 carbon atoms) and m and n are each an integer of 0 to 3 in an amount of 0.01 to 50 moles per 100 moles of the total ester or amide linkages in the molecule of the polyester or polyamide is irradiated with actinic rays so that chain-linking takes place between or among the molecules of the polyester or polyamide, whereby the physical and chemical properties of the shaped article are favorably enhanced.
Inventors
- 👤 Keiichi Uno
- 👤 Hikoichi Nagano
- 👤 Tadashi Ikegami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:56
CPC Classifications
B; B29; B29C; B29C71/00; B29C71/04; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0827; B29C2035/0833; B29K; B29K2077/00; B29K2079/00; B29K2079/08; B29K2105/00; B29K2105/24
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
142 words
A method for enhancing the physical and chemical properties of a shaped article of a polymeric composition, which comprises melt forming into a shaped article a polymer composition comprising as the essential component a saturated linear polyester comprising structural units from dicarboxylic acids, diols, lactones, oxycarboxylic acids, or functional derivations thereof and a structural unit selected from one of: ##STR9## wherein R 1 and R 2 are the same or different and each represents a monovalent organic group, m and n are each an integer of 0 to 3, d and e are each an integer of 2 to 6, and f and g are each an integer of 1 to 6, in an amount of 0.01 to 50 moles per 100 moles of the total ester linkage in the molecule of the polyester and irradiating the shaped article with actinic radiation.
Claim 2
Independent Claim
142 words
A method for enhancing the physical and chemical properties of a shaped article of a polymeric composition, which comprises melt forming into a shaped article a polymer composition comprising as the essential component a saturated linear polyester comprising structural units from dicarboxylic acids, diols, lactones, oxycarboxylic acids, or functional derivations thereof and a structural unit selected from one of: ##STR9## wherein R 1 and R 2 are the same or different and each represents a monovalent organic group, m and n are each an integer of 0 to 3, d and e are each an integer of 2 to 6, and f and g are each an integer of 1 to 6, in an amount of 0.01 to 50 moles per 100 moles of the total ester linkage in the molecule of the polyester and irradiating the shaped article with actinic radiation.
Claim 3
Dependent Claim
13 words
The method according to claim 1, wherein m and n are each zero.
Claim 4
Dependent Claim
24 words
The method according to claim 1, wherein said monovalent organic group is an aliphatic, alicyclic or aromatic group having 1 to 10 carbon atoms.
Claim 5
Dependent Claim
47 words
The method according to claim 1, wherein not less than 50 mol % of said dicarboxylic acid units are units of a benzenedicarboxylic acid and not less than 50 mol % of said diol units are units of an alkylene glycol having 2 to 10 carbon atoms.
Claim 6
Dependent Claim
80 words
The method according to claim 1, wherein said saturated linear polyester comprises units of terephthalic acid as said dicarboxylic acid units and units of an alkylene glycol having 2 to 10 carbon atoms and of the following formula in a molar proportion of 99.9:0.1 to 80:20 as the diol units: ##STR10## wherein d and e are each an integer of 2 to 6 and R 1 , R 2 , m and n are each as defined in claim 1.
Claim 7
Dependent Claim
14 words
The method according to claim 1, wherein said shaped article is an undrawn film.
Claim 8
Dependent Claim
14 words
The method according to claim 1, wherein said shaped article is a drawn film.
Claim 9
Dependent Claim
13 words
The method according to claim 1, wherein said shaped article is a fiber.
Claim 10
Dependent Claim
13 words
The method according to claim 1, wherein said shaped article is a fabric.
Claim 11
Dependent Claim
21 words
The method according to claim 1, wherein said actinic radiation comprises ultraviolet rays having a wavelength of 200 to 400 mμ.
Claim 12
Dependent Claim
123 words
An article melt formed into a shaped article made of a polymeric composition comprising as the essential component a saturated linear polyester comprising structural units from dicarboxylic acids, diols, lactones, oxycarboxylic acids, or functional derivations thereof and a structural unit selected from one of: ##STR11## wherein R 1 and R 2 are the same or different and each represents a monovalent organic group, m and n are each an integer of 0 to 3, d and e are each an integer of 2 to 6, and f and g are each an integer of 1 to 6, in an amount of 0.01 to 50 moles per 100 moles of the total ester linkage in the molecule of the polyester, irradiated by actinic radiation.
Claim 13
Dependent Claim
123 words
An article melt formed into a shaped article made of a polymeric composition comprising as the essential component a saturated linear polyester comprising structural units from dicarboxylic acids, diols, lactones, oxycarboxylic acids, or functional derivations thereof and a structural unit selected from one of: ##STR11## wherein R 1 and R 2 are the same or different and each represents a monovalent organic group, m and n are each an integer of 0 to 3, d and e are each an integer of 2 to 6, and f and g are each an integer of 1 to 6, in an amount of 0.01 to 50 moles per 100 moles of the total ester linkage in the molecule of the polyester, irradiated by actinic radiation.
Claim 14
Dependent Claim
14 words
The shaped article according to claim 11, wherein m and n are each zero.
Claim 15
Dependent Claim
25 words
The shaped article according to claim 11, wherein said monovalent organic group is an aliphatic, alicyclic or aromatic group having 1 to 10 carbon atoms.
Claim 16
Dependent Claim
48 words
The shaped article according to claim 11, wherein not less than 50 mol % of said dicarboxylic acid units are units of a benzenedicarboxylic acid and not less than 50 mol % of said diol units are units of an alkylene glycol having 2 to 10 carbon atoms.
Claim 17
Dependent Claim
83 words
The shaped article according to claim 11, wherein said essential component is a polyester comprising units of terephthalic acid as the dicarboxylic acid units and units of an alkylene glycol having 2 to 10 carbon atoms and of the following formula in a molar proportion of 99.9:0.1 to 80:20 as the diol units: ##STR12## wherein d and e are each an integer of 2 to 6 and R 1 , R 2 , m and n are each as defined in claim 1.
Claim 18
Dependent Claim
15 words
The shaped article according to claim 11, wherein said shaped article is an undrawn film.
Claim 19
Dependent Claim
15 words
The shaped article according to claim 11, wherein said shaped article is a drawn film.
Claim 20
Dependent Claim
14 words
The shaped article according to claim 11, wherein said shaped article is a fiber.
Claim 21
Dependent Claim
14 words
The shaped article according to claim 11, wherein said shaped article is a fabric.
Claim 22
Dependent Claim
22 words
The shaped article according to claim 11, wherein said actinic radiation comprises ultraviolet rays having a wavelength of 200 to 400 mμ.
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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) | 1989-03-24 | 1989-09-23 | 1990-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-24 | 1993-09-23 | 1994-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-24 | 1997-09-23 | 1998-03-25 | $7700.00 | Window Closed / Lapsed |