Highly heat-resistant disc roll

• US 4,533,581 A
• Filed: 03/07/1983
• Issued: 08/06/1985
• Est. Priority Date: 03/09/1982
• Status: Expired due to Term

• Current Assignee: Nichia Corporation
• Original Assignee: Nichia Corporation
• Inventors: Terada, Isao, Take, Shigeo, Asaumi, Hiroshi, Akase, Masazumi
• Primary Examiner(s): Thibodeau, Paul J.
• Application Number:
  US06/473,105
• Time in Patent Office: 883 Days
• Field of Search: 428/64, 428/333, 428/336, 428/516, 428/517, 428/405, 428/324, 428/363, 264/28, 264/110, 264/115, 264/122, 523/203, 523/213, 523/209, 523/205, 524/444, 524/445, 524/449, 524/450-452, 524/493
• US Class Current: 428/64.1
• CPC Class Codes: B65G 39/07 Other adaptations of sleeves
• CPC Class Codes: C03B 15/18 Means for laying-down and conveying combined with the drawing of glass sheets, tubes or rods
• CPC Class Codes: C03B 35/181 Materials, coatings, loose coverings or sleeves thereof
• CPC Class Codes: C04B 14/20 Mica; Vermiculite mechanical splitting B28D
• CPC Class Codes: Y10T 428/21 Circular sheet or circular blank
• CPC Class Codes: Y10T 428/251 Mica
• CPC Class Codes: Y10T 428/2911 Mica flake

Abstract

Disclosed is a highly heat-resistant disc roll comprising laminated discs, each disc comprising 20 to 90% by weight, based on the total solids of mica particles, 1 to 35% by weight, based on the total solids, of a binder, 5 to 40% weight, based on the total solids, of an inorganic filler and 1 to 30% by weight, based on the total solids, of a reinforcing fiber.

Claims

1. A highly heat-resistant disc roll comprising laminated discs, each disc comprising 20 to 90% by weight, based on the total solids, of mica particles, 1 to 35% by weight, based on the total solids, of a binder, 5 to 40% by weight, based on the total solids, of an inorganic filler and 1 to 30% by weight, based on the total solids, of a reinforcing fiber, at least 60% by weight of said mica particles having a particle size of 10 to 1,000 μ

m, said mica particles being phlogophite formed by cleavage of mica crystals into scales.