Safety impact resistant laminates having improved interlayer materials

• US 4,894,282 A
• Filed: 03/16/1988
• Issued: 01/16/1990
• Est. Priority Date: 06/02/1986
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Olszewski, William V., LeGrand, Donald G.
• Primary Examiner(s): Herbert, Thomas J.
• Application Number:
  US07/169,077
• Time in Patent Office: 671 Days
• Field of Search: 428/412, 428/174, 428/442, 428/426, 428/415, 428/419, 428/425.6, 428/516, 428/517, 428/429, 428/437, 428/441, 428/447, 156/99, 156/103, 156/104, 156/106, 156/306.6, 228/30
• US Class Current: 428/332
• CPC Class Codes: B32B 17/10009 characterized by the number, the constitution or treatment of glass sheets
• CPC Class Codes: B32B 17/10743 containing acrylate (co)polymers or salts thereof
• CPC Class Codes: B32B 17/10752 containing polycarbonate
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: F41H 5/0407 Transparent bullet-proof laminatesinformative reference: layered products essentially comprising glass in general B32B17/06, e.g. B32B17/10009; manufacture or composition of glass, e.g. joining glass to glass C03; permanent multiple-glazing windows, e.g. with spacing therebetween, E06B3/66
• CPC Class Codes: Y10T 428/26 Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/31507 Of polycarbonate
• CPC Class Codes: Y10T 428/31518 Next to glass or quartz

Abstract

Safety or impact resistant laminates are disclosed containing a plurality of laminae and at least on composite interlayer said composite interposed between and bonding any two of the laminae and containing one or more thermoplastic sheets from about 1 to about 30 mils in combined thickness bonded one to another and on each external face by a contact or pressure sensitive adhesive layer.

Claims

1. A method for bonding safety and penetration resistant laminates which consists essentially of contacting under pressure a plurality of laminae selected from the group consisting of glass laminae and thermoplastic laminae where there is situated between adjacent laminae a composite pressure sensitive adhesive inner layer comprising:

(i) at least one thermoplastic sheet having a combined thickness of about 1 to 30 mils, and

(ii) a pressure sensitive adhesive sheet adhered to each face of said thermoplastic sheet.

2. A laminate produced by the method of claim 11.