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 AMSTERDAM13

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Young, Jason C Portland, OR 20 108

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Patent Info (Count) # Cites Year
 
JAMES HARDIE TECHNOLOGY LIMITED (12)
6,699,576 Fibrous cementitious plank assembly having a protective film and method of making same 14 2001
7,704,316 Coatings for building products and methods of making same 2 2002
7,658,794 Fiber cement building materials with low density additives 4 2003
8,297,018 Packaging prefinished fiber cement products 0 2003
7,993,570 Durable medium-density fibre cement composite 1 2003
7,323,076 Method of making a plank assembly having a protective film 2 2004
7,998,571 Composite cement article incorporating a powder coating and methods of making same 0 2005
8,281,535 Packaging prefinished fiber cement articles 0 2007
7,727,329 Fiber cement building materials with low density additives 2 2008
7,708,826 Additive for dewaterable slurry and slurry incorporating same 1 2008
8,182,606 Fiber cement building materials with low density additives 1 2010
8,603,239 Fiber cement building materials with low density additives 0 2012
 
BUCHTAL GESELLSCHAFT MIT BERSCHRAKTER HAFTUNG, A CORP. OF GERMANY (1)
4,621,001 Tile-shaped composite element 12 1985
 
PLYCEM USA, INC. (1)
7,155,866 Cementitious exterior sheathing product having improved interlaminar bond strength 11 2003
 
Other [Check patent profile for assignment information] (1)
4,287,020 Method of preparation of an asbestos product 5 1979