James Hardie Technology Limited

Yongjun Chen

Caidian Luo

Weiling Peng

Mark Thomas Fisher

Jimmy Lee McCammon

Jeffrey Charles Chastain

Huaijun Wang

Huagang Zhang

Thinh Pham

Thomas Patrick Mueller

Xiangyuan Liu

Jongmin Keum

Lijun Mao

Farshad J Motamedi

Yan Li

Luan Giang

A fiber cement material formulation comprising a cementitious binder, a siliceous material, fiber, alumina trihydrate and a bifunctional low density additive wherein the bifunctional low density additive comprises any one or more of diatomaceous earth, recycled autoclave fiber cement dust or cellulose dust. The fiber cement material formulation optionally further comprises a secondary low density additive which may be perlite. In some embodiments, a fiber cement article manufactured from the fiber cement material formulation comprises a density of approximately 1.1 g/cmor below.

Fiber cement material formulations and compositions thereof

Disclosed herein are various embodiments of a protective packaging system suitable for use with a prefinished building article. The protective packaging system generally is designed to reduce shrink back of the flexible substrate after tension is applied. The protective packaging system generally comprises at least one outer layer, at least one core layer and at least one adhesive layer. One or more layers of the protective packaging system may include a roughening agent such that the flexible substrate will not 'gloss' or burnish a coating on a prefinished building article. The protective packaging system may also include one or more biocides.

Packaging for prefinished articles

Disclosed herein are various embodiments of a protective packaging system suitable for use with a prefinished building article. The protective packaging system generally is designed to reduce shrink back of the flexible substrate after tension is applied. The protective packaging system generally comprises at least one outer layer, at least one core layer and at least one adhesive layer. One or more layers of the protective packaging system may include a roughening agent such that the flexible substrate will not 'gloss' or burnish a coating on a prefinished building article.

Disclosed herein are fiber reinforced cement composite materials incorporating a fiber blend that includes cellulose pulp and synthetic fibers in a ratio selected to provide the composite material with improved water absorption characteristics and the same or improved mechanical properties as compared to equivalent composite materials reinforced with predominantly or all cellulose fibers. Also disclosed herein are fiber blends comprised of a combination of cellulose fibers and polypropylene fibers adapted to reinforce cementitious composite articles manufactured by the Hatschek process and autoclave cured.

Blended fibers in an engineered cementitious composite

Improved coating formulations for cementitious composite building materials are disclosed herein. The coating formulations provide both sealer and primer functions, particularly for substrates in a high alkaline environment, such as fiber cement composite materials. The coating formulations can be applied in a cost-effective single step; exhibit improved adhesion, blocking resistance, water resistance characteristics

Multi-functional coating system for cementitious composite materials

Disclosed herein are fiber reinforced cement composite materials incorporating a 3-mode fiber blend that includes cellulose pulp and synthetic fibers in a ratio selected to provide the composite material with improved water absorption characteristics and the same or improved mechanical properties as compared to equivalent composite materials reinforced with predominantly or all cellulose fibers. Also disclosed herein are fiber blends comprised of a combination of cellulose fibers and polypropylene fibers adapted to reinforce cementitious composite articles manufactured by the Hatschek process and autoclave cured.

3-mode blended fibers in an engineered cementitious composite

Protected prefinished fiber cement articles are manufactured by applying a protective layer on the finished surface of a fiber cement article. The protective layer protects the finish layer of the prefinished fiber cement article during handling, storage, and transport. Removing the protective layer leaves no residue on the finish layer, does not damage the finish layer, and does not substantially tear the protective layer. Protected prefinished fiber cement article are typically stacked on pallets for storage and transport. Optionally, spacers may be placed between the stacked protected prefinished fiber cement article.

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Rancho Cucamonga, CA, United States of America

Yongjun Chen