US4673613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminate material comprising polyurethane and metal mesh
Assignee: Vickers Xatal Pty Ltd
•
Filing: 1985-10-22
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Granted: 1987-06-16
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Expires: 2005-10-22
Abstract
Abstract A laminate article including a moulded support member formed from a thermosetting polymeric composition including an effective amount of a polyurethane, a plasticiser for the polyurethane resin, and a polyurethane curing agent, a reinforcing member fully embedded within the moulded support member.
Inventors
- 👤 Noel D. Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:38
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/24; A47C7/26; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/24995; Y10T428/249951; Y10T428/31504; Y10T428/31551; Y10T428/31605
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
71 words
A laminate article having increased resistance to puncture or slashing which comprises (a) a moulded substantially non-cellular support member formed from a thermosetting polymeric composition including an effective amount of (i) a polyurethane resin, (ii) a plasticiser for the polyurethane resin, and (iii) a polyurethane curing agent, (b) a reinforcing wire mesh member fully embedded within the moulded support member (a) and having a width less than the moulded support member.
Claim 2
Dependent Claim
71 words
A laminate article having increased resistance to puncture or slashing which comprises (a) a moulded substantially non-cellular support member formed from a thermosetting polymeric composition including an effective amount of (i) a polyurethane resin, (ii) a plasticiser for the polyurethane resin, and (iii) a polyurethane curing agent, (b) a reinforcing wire mesh member fully embedded within the moulded support member (a) and having a width less than the moulded support member.
Claim 3
Dependent Claim
23 words
A laminate article according to claim 1 further including (c) a cover member overlaying the top surface of the moulded support member (a).
Claim 4
Dependent Claim
80 words
A laminate article according to claim 1 wherein the thermosetting polymeric composition includes (i) from approximately 85% by weight to approximately 92% by weight based on the total weight and thermosetting polymeric composition of the polyurethane resin, (ii) from approximately 1 to 2% by weight based on the weight of the thermosetting plasticiser for the polyurethane resin, and (iii) from approximately 7 to 13% by weight based on the weight of the thermosetting polymeric composition of a polyurethane curing agent.
Claim 5
Dependent Claim
21 words
A laminate article according to claim 3 wherein the plasticiser is a chlorinated wax and the polyurethane curing agent is 4,4'-methylene-bis(2-chloroaniline).
Claim 6
Dependent Claim
21 words
A laminate article according to claim 4 wherein the reinforcing member is in the form of a metal web or mesh.
Claim 7
Dependent Claim
31 words
A laminate article according to claim 5 wherein the cover member is manufactured from a woolen fabric treated to provide stain resistance, moisture resistance, resistance to fungal growth and flame retardance.
Claim 8
Independent Claim
138 words
A method of preparing a laminate article which comprises a moulded substantially non-cellular support member formed from a thermosetting polymeric composition comprising effective amount of (i) a polyurethane resin (ii) a plasticiser for the polyurethane resin, (iii) a polyurethane curing agent, and a reinforcing wire mesh member fully embedded within the moulded support member and having a width slightly less than the moulded support member, which method comprises providing a thermosetting polymeric composition including an effective amount of a polyurethane resin, a plasticiser for the polyurethane resin, and a polyurethane curing agent; a reinforcing member as described above, and a mould for the thermosetting polymeric compostion inserting the reinforcing member into the mould, mixing the components of the thermosetting polymeric composition together adding the mixture so formed to the mould, and curing the product at an elevated temperature.
Claim 9
Independent Claim
138 words
A method of preparing a laminate article which comprises a moulded substantially non-cellular support member formed from a thermosetting polymeric composition comprising effective amount of (i) a polyurethane resin (ii) a plasticiser for the polyurethane resin, (iii) a polyurethane curing agent, and a reinforcing wire mesh member fully embedded within the moulded support member and having a width slightly less than the moulded support member, which method comprises providing a thermosetting polymeric composition including an effective amount of a polyurethane resin, a plasticiser for the polyurethane resin, and a polyurethane curing agent; a reinforcing member as described above, and a mould for the thermosetting polymeric compostion inserting the reinforcing member into the mould, mixing the components of the thermosetting polymeric composition together adding the mixture so formed to the mould, and curing the product at an elevated temperature.
Claim 10
Dependent Claim
36 words
A method of preparing a laminated article according to claim 7 which method further includes heating the polyurethane resin and plasticiser to an elevated temperature prior to mixing of the components of the thermosetting polymeric composition.
Claim 11
Dependent Claim
27 words
A method according to claim 8 wherein the mould for the thermosetting polymeric composition is treated prior to addition of the components with a polymeric release agent.
Claim 12
Dependent Claim
26 words
A method according to claim 9 wherein the curing step is conducted at a temperature of approximately 100° C. for approximately two hours within the mould.
Claim 13
Dependent Claim
16 words
A method according to claim 10 wherein the curing step is conducted in a closed mould.
Claim 14
Dependent Claim
15 words
A method of preparing a laminated article according to claim 7 which method further includes
Claim 15
Dependent Claim
52 words
providing (1) a cover member for the moulded support member, and (2) an adhesive for the cover member, applying the adhesive to the under surface of the cover member and the top surface of the cured article, and contacting the coated surfaces for a period sufficient to allow the adhesive to set.
Claim 16
Dependent Claim
52 words
providing (1) a cover member for the moulded support member, and (2) an adhesive for the cover member, applying the adhesive to the under surface of the cover member and the top surface of the cured article, and contacting the coated surfaces for a period sufficient to allow the adhesive to set.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-15 | 1990-12-15 | 1991-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-15 | 1994-12-15 | 1995-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-15 | 1998-12-15 | 1999-06-16 | $7700.00 | Window Closed / Lapsed |