The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2008
Filed:
Jun. 06, 2002
Patrice Bouscal, Saint Maur des Fosses, FR;
Frédéric Chantereau, Courbevoie, FR;
Adrien Colombet, Legal Representative, Nantes, FR;
Christian Derusco, Acheres, FR;
Bruno Le Rolland, Oinville sur Montcient, FR;
Gilbert Noworyta, Breuil bois Robert, FR;
Patrice Bouscal, Saint Maur des Fosses, FR;
Frédéric Chantereau, Courbevoie, FR;
Adrien Colombet, legal representative, Nantes, FR;
Christian Derusco, Acheres, FR;
Bruno Le Rolland, Oinville sur Montcient, FR;
Gilbert Noworyta, Breuil bois Robert, FR;
BPB PLC, Slough, GB;
Abstract
The invention concerns a plate whereof the body comprises a binder containing Portland cement, a sulphoaluminous clinker and a calcium sulphate source: the binder comprises, by weight 30 to 80% of Portland cement, 20 to 70% of sulphoaluminous binder, 5 to 20% of a calcium sulphate source, and 0.4 to 7% of a water-reducing plasticizer or highly waterreducing superplasticizer admixture; it contains light aggregates in an amount such that the final density is close to 1, of the order of 0.8 to 1.5.