UST893010I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST893010I4 UST893010I4 US893010DH UST893010I4 US T893010 I4 UST893010 I4 US T893010I4 US 893010D H US893010D H US 893010DH US T893010 I4 UST893010 I4 US T893010I4
- Authority
- US
- United States
- Prior art keywords
- synthetic resins
- mould
- adhesion improving
- resins
- compound
- 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.)
- Pending
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/83—Injection molding of polyolefin-type foam
Definitions
- the process is particularly useful for articles having a cellular core and an unfoamed surface.
- the adhesion improving compound which may itself be a synthetic resin, may be injected into the mould between the injection of the synthetic resins so that an adhesive layer is formed be tween them.
- the adhesion improving compound may comprise two components which react with each other in which case each component is incorporated into adjacent layers of the synthetic resins so that the components react along the line defining the join between the synthetic resins to form a bond.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
A PROCESS FOR THE PRODUCTION OF LAMINATES BY SEQUENTIALLY INJECTING TWO OR MORE SYNTHETIC RESINS INTO A MOULD IN WHICH A COMPOUND TO IMPROVE THE ADHESION BETWEEN THE SYNTHETIC RESINS IS ALSO INJECTED INTO THE MOULD. THE RESINS ARE MAINTAINED WITHIN THE MOULD FOR SUFFICIENT TIME FOR THEM TO SET AND FOR A BOND TO FORM BETWEEN THEM WITH THE AID OF THE ADHESION IMPROVING COMPOUND. THE PROCESS IS PARTICULARLY USEFUL FOR ARTICLES HAVING A CELLULAR CORE AND AN UNFOAMED SURFACE. THE ADHESION IMPROVING COMPOUND, WHICH MAY ITSELF BE A SYNTHETIC RESIN, MAY BE INJECTED INTO THE MOULD BETWEEN THE INJECTION OF THE SYNTHETIC RESINS SO THAT AN ADHESIVE LAYER IS FORMED BETWEEN THEM. ALSO, THE ADHESION IMPROVING COMPOUND MAY COMPRISE TWO COMPONENTS WHICH REACT WITH EACH OTHER IN WHICH CASE EACH COMPONENT IS INCORPORATED INTO ADJACENT LAYERS OF THE SYNTHETIC RESINS SO THAT THE COMPONENTS REACT ALONG THE LINE DEFINING THE JOINT BETWEEN THE SYNTHETIC RESINS TO FORM A BOND.
Description
EFENSWE UBLTCA'HUN UNITED STATES PATENT OFFICE Published at the request 01 the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts 01": Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. 'lhe heading of each abstract indicates the number of pages of specification, including claims and shectsof drawings contained in the application as originally filed. The files of these applications are available to the public'for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not'been examined as to the merits of alleged invention. The Patent Office makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED DECEMBER H, 1971 893 O.G. L03
1893,91!) PRODUCTION OF LAMINATES David Fairclough Oxley, St. Albans, England, assignor to Imperial Chemical Industries Limited, London, England Filed Feb. 4, 1971, Ser. No. 112,819 Int. Cl. B2941 27/00; B29f 1/00 U.S. Cl. 264-45 No Drawing. 10 Pages Specification A process for the production of laminates by sequentially injecting two or more synthetic resins into a mould in which a compound to improve the adhesion between the synthetic resins is also injected into the mould. The resins are maintained within the mould for sufiicient time for them to set and for a bond to form between them with the aid of the adhesion improving compound. The process is particularly useful for articles having a cellular core and an unfoamed surface. The adhesion improving compound, which may itself be a synthetic resin, may be injected into the mould between the injection of the synthetic resins so that an adhesive layer is formed be tween them. Also, the adhesion improving compound may comprise two components which react with each other in which case each component is incorporated into adjacent layers of the synthetic resins so that the components react along the line defining the join between the synthetic resins to form a bond.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11281971A | 1971-02-04 | 1971-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST893010I4 true UST893010I4 (en) | 1971-12-14 |
Family
ID=22345998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US893010D Pending UST893010I4 (en) | 1971-02-04 | 1971-02-04 | Defensive publication |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST893010I4 (en) |
-
1971
- 1971-02-04 US US893010D patent/UST893010I4/en active Pending
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