GB1165983A - Improved Thermosetting Resinous Articles - Google Patents
Improved Thermosetting Resinous ArticlesInfo
- Publication number
- GB1165983A GB1165983A GB5296567A GB5296567A GB1165983A GB 1165983 A GB1165983 A GB 1165983A GB 5296567 A GB5296567 A GB 5296567A GB 5296567 A GB5296567 A GB 5296567A GB 1165983 A GB1165983 A GB 1165983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- resin
- nov
- partially cured
- epoxy resins
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Epoxy Resins (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
1,165,983. Epoxy resins. DOW CHEMICAL CO. 21 Nov., 1967 [21 Nov., 1966], No. 52965/67. Heading C3B. Synthetic resins which pass through a " B- stage," i.e. a partially cured stage at which they are still softened by heating (especially epoxy resins) are stretched whilst still in the " B-stage " before curing to a rigid infusible state. The stretching which may be monodirectional or biaxial may be achieved by applying sufficient pressure, e.g. fluid pressure, to cause the partially cured resin to flow and maintaining such pressure until the body no longer flows or deforms. The resin may be first applied to a film of synthetic resin, e.g. polyethylene terephthalate, before stretching.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59563666A | 1966-11-21 | 1966-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1165983A true GB1165983A (en) | 1969-10-01 |
Family
ID=24384062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5296567A Expired GB1165983A (en) | 1966-11-21 | 1967-11-21 | Improved Thermosetting Resinous Articles |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE706749A (en) |
BR (1) | BR6794862D0 (en) |
CH (1) | CH487218A (en) |
DE (1) | DE1729398A1 (en) |
FR (1) | FR1580130A (en) |
GB (1) | GB1165983A (en) |
NL (1) | NL6715575A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5460860A (en) * | 1994-05-20 | 1995-10-24 | The Dow Chemical Company | Mesogen-containing biaxially oriented films |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5691567A (en) * | 1995-09-19 | 1997-11-25 | National Semiconductor Corporation | Structure for attaching a lead frame to a heat spreader/heat slug structure |
-
1967
- 1967-11-16 NL NL6715575A patent/NL6715575A/xx unknown
- 1967-11-16 DE DE19671729398 patent/DE1729398A1/en active Pending
- 1967-11-20 FR FR1580130D patent/FR1580130A/fr not_active Expired
- 1967-11-20 BE BE706749D patent/BE706749A/xx unknown
- 1967-11-21 CH CH1630467A patent/CH487218A/en not_active IP Right Cessation
- 1967-11-21 GB GB5296567A patent/GB1165983A/en not_active Expired
- 1967-11-21 BR BR19486267A patent/BR6794862D0/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5460860A (en) * | 1994-05-20 | 1995-10-24 | The Dow Chemical Company | Mesogen-containing biaxially oriented films |
Also Published As
Publication number | Publication date |
---|---|
BE706749A (en) | 1968-05-20 |
CH487218A (en) | 1970-03-15 |
DE1729398A1 (en) | 1971-07-01 |
FR1580130A (en) | 1969-09-05 |
NL6715575A (en) | 1968-05-22 |
BR6794862D0 (en) | 1973-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |