GB1165983A - Improved Thermosetting Resinous Articles - Google Patents

Improved Thermosetting Resinous Articles

Info

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
Application number
GB5296567A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1165983A publication Critical patent/GB1165983A/en
Expired legal-status Critical Current

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.
GB5296567A 1966-11-21 1967-11-21 Improved Thermosetting Resinous Articles Expired GB1165983A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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