US5942307A
Expired / Lapsed
US
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Lightweight building board
Assignee: Evonik Operations GmbH
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Filing: 1996-06-10
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Granted: 1999-08-24
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Expires: 2016-06-10
Abstract
Abstract A multilayered lightweight building board, comprising a support core, two cover layers on the support core, where the support core is made of laterally fused-together tubes. The tubes have an inner layer, and an outer layer, where the outer layer has a softening point 10-90° C. lower than the softening point of the inner layer. The lightweight building board is made from compatible thermoplastic materials, so they can be mechanically recycled by the customary processing methods for thermoplastics.
Inventors
- 👤 Walter Hellermann
- 👤 Christian Baron
- 👤 Juergen Finke
- 👤 Hubertus Ohm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:23
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/10; B32B3/18; B32B3/20; B32B27/00; B32B27/06; B32B27/08; B32B27/34; B32B7/00; B32B7/02; B32B7/027; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/30; E04C2/34; E04C2/36; B32B2419/00; B32B2607/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1317; Y10T428/1321; Y10T428/1352; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
109 words
A board, comprising: (a) a support core; (b) a first cover layer, on said support core; and (c) a second cover layer, on said support core; wherein said support core comprises fused-together tubes with their axes in a parallel arrangement, and said tubes comprise (i) an inner layer comprising a first material, and (ii) an outer layer comprising a second material, wherein said second material has a softening point 10-90° C. lower than the softening point of said first material; and wherein said first cover is on the upper side transverse to the tube axes and said second cover is on the lower side transverse to the tube axes.
Claim 2
Dependent Claim
109 words
A board, comprising: (a) a support core; (b) a first cover layer, on said support core; and (c) a second cover layer, on said support core; wherein said support core comprises fused-together tubes with their axes in a parallel arrangement, and said tubes comprise (i) an inner layer comprising a first material, and (ii) an outer layer comprising a second material, wherein said second material has a softening point 10-90° C. lower than the softening point of said first material; and wherein said first cover is on the upper side transverse to the tube axes and said second cover is on the lower side transverse to the tube axes.
Claim 3
Dependent Claim
24 words
The board of claim 1, wherein said second material has a softening point 20-60° C. lower than the softening point of said first material.
Claim 4
Dependent Claim
26 words
The board of claim 1, wherein said outer layer has a thickness which is 10-50% of the total combined thickness of the inner and outer layers.
Claim 5
Dependent Claim
61 words
The board of claim 1, wherein said first material is polyamide 12 or polyamide 11, and said second material is a copolyamide containing: (I) 40-90% by weight of monomeric units derivable from laurolactam or ω-aminoundecanoic acid, and (II) 60-10% by weight of monomeric units derivable from equimolar amounts of (A) aliphatic or aromatic dicarboxylic acids, and (B) aliphatic or cycloaliphatic diamines.
Claim 6
Dependent Claim
57 words
The board of claim 4, wherein said aliphatic or aromatic dicarboxylic acids are selected from the group consisting of azelaic acid, sebacic acid, decanedicarboxylic acid, isophthalic acid, adipic acid and dodecanedicarboxylic acid; and wherein said aliphatic or cycloaliphatic diamines are selected from the group consisting of hexamethylenediamine, trimethylhexamethylenediamine, 5-methylnonamethylenediamine, decamethylenediamine, dodecamethylenediamine, 2,4-dimethyloctamethylenediamine, isophoronediamine, bis(p-aminocyclohexyl)methane, 1-4-bisaminomethylcyclohexane and bis(3-methyl-4-aminocyclohexyl)methane.
Claim 7
Dependent Claim
43 words
The board of claim 1, further comprising a first film between said first cover layer and said support core; and a second film between said second cover layer and said support core; wherein said first and said second films comprise said second material.
Claim 8
Dependent Claim
13 words
The board of claim 1, wherein said support core has a honeycomb structure.
Claim 9
Dependent Claim
43 words
The board of claim 5, further comprising a first film between said first cover layer and said support core; and a second film between said second cover layer and said support core; wherein said first and said second films comprise said second material.
Claim 10
Dependent Claim
94 words
A tube, comprising: (i) an inner layer comprising a first material, and (ii) an outer layer comprising a second material, wherein said second material has a softening point 10-90 0C. lower than the softening point of said first material, said first material is polymide 12 or polyamide 11, and said second material is a copolyamide containing: (I) 40-90% by weight of monomeric units derivable from laurolactam or ω-aminoundecanoic acid, and (II) 60-10% by weight of monomeric units derivable from equimolar amounts of (A) aliphatic or aromatic dicarboxylic acids, and (B) aliphatic or cycloaliphatic diamines.
Claim 11
Dependent Claim
94 words
A tube, comprising: (i) an inner layer comprising a first material, and (ii) an outer layer comprising a second material, wherein said second material has a softening point 10-90 0C. lower than the softening point of said first material, said first material is polymide 12 or polyamide 11, and said second material is a copolyamide containing: (I) 40-90% by weight of monomeric units derivable from laurolactam or ω-aminoundecanoic acid, and (II) 60-10% by weight of monomeric units derivable from equimolar amounts of (A) aliphatic or aromatic dicarboxylic acids, and (B) aliphatic or cycloaliphatic diamines.
Claim 12
Dependent Claim
57 words
The tube of claim 9, wherein said aliphatic or aromatic dicarboxylic acids are selected from the group consisting of azelaic acid, sebacic acid, decanedicarboxylic acid, isophthalic acid, adipic acid and dodecanedicarboxylic acid; and wherein said aliphatic or cycloaliphatic diamines are selected from the group consisting of hexamethylenediamine, trimethylhexamethylenediamine, 5-methylnonamethylenediamine, decamethylenediamine, dodecamethylenediamine, 2,4-dimethyloctamethylenediamine, isophoronediamine, bis(p-aminocyclohexyl)methane, 1-4-bisaminomethylcyclohexane and bis(3-methyl-4-aminocyclohexyl)methane.
Claim 13
Dependent Claim
26 words
The tube of claim 9, wherein said outer layer has a thickness which is 10-50% of the total combined thickness of the inner and outer layers.
Claim 14
Independent Claim
67 words
A method, comprising: fusing tubes together laterally, thereby forming a support core; and applying to said support core a first cover layer and a second cover layer; wherein said tubes comprise (i) an inner layer comprising a first material, and (ii) an outer layer comprising a second material, wherein said second material has a softening point 10-90° C. lower than the softening point of said first material.
Claim 15
Independent Claim
67 words
A method, comprising: fusing tubes together laterally, thereby forming a support core; and applying to said support core a first cover layer and a second cover layer; wherein said tubes comprise (i) an inner layer comprising a first material, and (ii) an outer layer comprising a second material, wherein said second material has a softening point 10-90° C. lower than the softening point of said first material.
Claim 16
Dependent Claim
24 words
The method of claim 12, wherein said second material has a softening point 20-60° C. lower than the softening point of said first material.
Claim 17
Dependent Claim
26 words
The method of claim 12, wherein said outer layer has a thickness which is 10-50% of the total combined thickness of the inner and outer layers.
Claim 18
Dependent Claim
61 words
The method of claim 12, wherein said first material is polyamide 12 or polyamide 11, and said second material is a copolyamide containing: (I) 40-90% by weight of monomeric units derivable from laurolactam or ω-aminoundecanoic acid, and (II) 60-10% by weight of monomeric units derivable from equimolar amounts of (A) aliphatic or aromatic dicarboxylic acids, and (B) aliphatic or cycloaliphatic diamines.
Claim 19
Dependent Claim
56 words
The method claim 15, wherein said aliphatic or aromatic dicarboxylic acids are selected from the group consisting of azelaic acid, sebacic acid, decanedicarboxylic acid, isophthalic acid, adipic acid and dodecanedicarboxylic acid; and wherein said aliphatic or cycloaliphatic diamines are selected from the group consisting of hexamethylenediamine, trimethylhexamethylenediamine, 5-methylnonamethylenediamine, decamethylenediamine, dodecamethylenediamine, 2,4-dimethyloctamethylenediamine, isophoronediamine, bis(p-aminocyclohexyl)methane, 1-4-bisaminomethylcyclohexane and bis(3-methyl-4-aminocyclohexyl)methane.
Claim 20
Dependent Claim
43 words
The method of claim 12, further comprising a first film between said first cover layer and said support core; and a second film between said second cover layer and said support core; wherein said first and said second films comprise said second material.
Claim 21
Dependent Claim
13 words
The method of claim 12, wherein said support core has a honeycomb structure.
Claim 22
Dependent Claim
43 words
The method of claim 16, further comprising a first film between said first cover layer and said support core; and a second film between said second cover layer and said support core; wherein said first and said second films comprise said second material.
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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) | 2002-08-23 | 2003-02-22 | 2003-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-23 | 2007-02-22 | 2007-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-23 | 2011-02-22 | 2011-08-24 | $7700.00 | Window Closed / Lapsed |