US4370469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphenylenesulfide sheet-like material
Assignee: Toray Industries Inc
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Filing: 1981-03-10
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Granted: 1983-01-25
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Expires: 2001-03-10
Abstract
Abstract A sheet-like material and a printed circuit board comprised of the sheet-like material with a metallic film laminated thereon are provided wherein the sheet-like material is comprised of a composition mainly consisting of high molecular weight poly p-phenylenesulfide, characterized in that: a. the amount of related materials extracted through chloroform extraction of the poly p-phenylenesulfide containing related materials is less than 1.5 wt % of the entire weight of said poly p-phenylenesulfide prior to said extraction, and b. as measured by wide angle X-ray diffraction, (i) the index of crystallinity of said poly p-phenylenesulfide is in the range of above 2.5 and below 8.0, (ii) the crystallite size of said poly p-phenylenesulfide is in the range of above 50 A and below 100 A, and (iii) the orientation factors of said poly p-phenylenesulfide, measured in three directions comprising through the sample, edgewise and endwise, are above 0.70, as measured by wide angle x-ray diffraction.
Inventors
- 👤 Yukichi Deguchi
- 👤 Yukio Noguchi
- 👤 Hiroaki Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:55
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; B; B29; B29C; B29C71/00; B29C71/0009; C08G; C08G75/00; C08G75/02; C08G75/0204; C08G75/0209; C08G75/0213; C08G75/025; C08G75/0254; C08G75/0277; C08G75/0281; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0333; B29K; B29K2081/00; C08J2381/00; C08J2381/02; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31533
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
119 words
A sheet-like material comprising a composition mainly consisting of high molecular weight poly p-phenylenesulfide, characterized in that: a. the amount of ingredient which is extracted through chloroform extraction of said sheet-like material is less than 1.5 wt% of the entire weight of said sheet-like material prior to said extraction, and b. (i) the index of crystallinity of said poly-p-phenylenesulfide is in the range of about 2.5 and below 8.0, (ii) the crystallite size of said poly p-phenylenesulfide is in the range of about 50 A and below 100 A, and (iii) the orientation factors of said poly p-phenylenesulfide, measured in three directions comprising through the sample, edgewise and endwise, are above 0.70, as measured by wide angle X-ray diffraction.
Claim 2
Dependent Claim
119 words
A sheet-like material comprising a composition mainly consisting of high molecular weight poly p-phenylenesulfide, characterized in that: a. the amount of ingredient which is extracted through chloroform extraction of said sheet-like material is less than 1.5 wt% of the entire weight of said sheet-like material prior to said extraction, and b. (i) the index of crystallinity of said poly-p-phenylenesulfide is in the range of about 2.5 and below 8.0, (ii) the crystallite size of said poly p-phenylenesulfide is in the range of about 50 A and below 100 A, and (iii) the orientation factors of said poly p-phenylenesulfide, measured in three directions comprising through the sample, edgewise and endwise, are above 0.70, as measured by wide angle X-ray diffraction.
Claim 3
Dependent Claim
23 words
A printed circuit board which comprises a poly p-phenylenesulfide sheet-like material as claimed in claim 1 with a metallic thin film laminated thereon.
Claim 4
Dependent Claim
38 words
The sheet-like material as claimed in claim 1 wherein said high molecular weight poly p-phenylene sulfide is based upon recurring units as represented by the structural formula ##STR9## in an amount of more than about 90 mol percent.
Claim 5
Dependent Claim
37 words
The sheet-like material as claimed in claim 1 wherein said high molecular weight poly p-phenylene-sulfide is based upon recurring units as represented by the structural formula ##STR10## in an amount of more than about 95 mol percent.
Claim 6
Dependent Claim
36 words
The sheet-like material as claimed in claim 1 wherein the amount of ingredient which is extracted through chloroform extraction is less than 1.2 wt.% of the entire weight of said sheet-like material prior to said extraction.
Claim 7
Dependent Claim
23 words
The sheet-like material as claimed in claim 1 wherein said index of crystallinity is in the range of above 3.0 and below 6.0.
Claim 8
Dependent Claim
36 words
The sheet-like material as claimed in claim 1 wherein the melt viscosity of said poly p-phenylene-sulfide is in the range between 2,000 and 100,000 poises at a shear rate of 200 seconds -1 at 300° C.
Claim 9
Dependent Claim
25 words
The sheet-like material as claimed in claim 7 wherein the melt viscosity of said poly p-phenylenesulfide is in the range between 3,000 and 50,000 poises.
Claim 10
Dependent Claim
28 words
The sheet-like material as claimed in claim 1 wherein the non-Newtonian coefficient of said poly p-phenylenesulfide at 300° C. is in the range of about 0.9 to 2.0.
Claim 11
Dependent Claim
27 words
A sheet-like material as claimed in claim 1 wherein the melt flow index of said poly p-phenylene sulfide is in the range of about 10 to 130.
Claim 12
Dependent Claim
22 words
A sheet-like material as claimed in claim 1 wherein the degree of polymerization of said poly p-phenylenesulfide is about 50 to 1,000.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |