US Patent No: 4,184,906

Number of patents in Portfolio can not be more than 2000

Method of making asbestos-cement laminates

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Abstract

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Laminated slabs superficially bonded together are prepared by autoclaving a vertically compressed stack including a plurality of the sheets when initially set but not finally cured and having a polyethylene or like plastic film-like layer sandwiched between each pair of the sheet surfaces to be bonded together. A layer of material other than asbestos-cement may be sandwiched between the asbestos-cement sheets, for example, metal foil, to make the slab moisture-impervious or an array of filaments or wire-mesh material as reinforcement may be used.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
JAMES HARDIE RESEARCH PTY LIMITED1077 ZX AMSTERDAM4

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Young, Jason C Lynfield, NZ 14 212

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 4,287,020 Method of preparation of an asbestos product 5 1979
 
BUCHTAL GESELLSCHAFT MIT BERSCHRAKTER HAFTUNG, A CORP. OF GERMANY (1)
* 4,621,001 Tile-shaped composite element 12 1985
 
PLYCEM USA, INC. (4)
* 7,155,866 Cementitious exterior sheathing product having improved interlaminar bond strength 15 2003
* 2004/0083,677 Cementitious exterior sheathing product having improved interlaminar bond strength 2 2003
* 9,435,124 Cementitious exterior sheathing product having improved interlaminar bond strength 0 2012
* 2012/0192,517 CEMENTITIOUS EXTERIOR SHEATHING PRODUCT HAVING IMPROVED INTERLAMINAR BOND STRENGTH 0 2012
 
JAMES HARDIE TECHNOLOGY LIMITED (22)
6,699,576 Fibrous cementitious plank assembly having a protective film and method of making same 17 2001
7,704,316 Coatings for building products and methods of making same 2 2002
* 2002/0170,467 Coatings for building products and methods of making same 26 2002
7,658,794 Fiber cement building materials with low density additives 6 2003
8,297,018 Packaging prefinished fiber cement products 0 2003
* 2004/0086,676 Packaging prefinished fiber cement products 13 2003
7,993,570 Durable medium-density fibre cement composite 1 2003
* 2006/0288,909 Durable medium-density fibre cement composite 27 2003
7,323,076 Method of making a plank assembly having a protective film 2 2004
* 2004/0163,757 Fibrous cementitious plank assembly having a protective film and method of making same 0 2004
7,998,571 Composite cement article incorporating a powder coating and methods of making same 0 2005
* 2009/0151,283 FLOORING SHEET AND MODULAR FLOORING SYSTEM 3 2006
8,281,535 Packaging prefinished fiber cement articles 0 2007
* 2007/0196,611 Packaging prefinished fiber cement articles 2 2007
8,993,462 Surface sealed reinforced building element 0 2007
7,727,329 Fiber cement building materials with low density additives 2 2008
* 2008/0203,365 Fiber Cement Building Materials With Low Density Additives 17 2008
7,708,826 Additive for dewaterable slurry and slurry incorporating same 1 2008
* 2009/0218,720 Method and Apparatus for Extruding Cementitious Articles 1 2009
8,182,606 Fiber cement building materials with low density additives 1 2010
* 2010/0242,802 Fiber cement building materials with low density additives 2 2010
8,603,239 Fiber cement building materials with low density additives 1 2012
 
JAMES HARDIE RESEARCH PTY LIMITED (1)
* 2002/0169,271 Adhesive mixture for bonding fluorohydrocarbon film to fibrous cementitious materials 8 2001
 
NV Technology Holdings. (1)
* 2007/0077,436 Composite product 28 2006
 
JAMES HARDIE INTERNATIONAL FINANCE B.V. (1)
* 2005/0138,865 Eave lining system 8 2004
* Cited By Examiner