Title:
MULTIPLE GLAZING, PRODUCTION METHOD THEREFOR, AND SEALING MATERIAL FOR MULTIPLE GLAZING
Document Type and Number:
WIPO Patent Application WO/2024/048279
Kind Code:
A1
Abstract:
The present invention improves molding speed and the precision of corner-portion molding and improve production efficiency and production stability. A multiple glazing of the present invention comprises two or more glass plates disposed opposite each other and separated by a spacer so as to form a space layer therebetween. The spacer comprises a thermoplastic resin composition having a 25°C JIS A hardness of 10-90. The thermoplastic resin composition comprises butyl-based rubbers, a crystalline polyolefin, a desiccant, and an inorganic filler, wherein the proportion of the crystalline polyolefin to the sum of the butyl-based rubbers and the crystalline polyolefin is 2-12 wt% and the proportion of the crystalline polyolefin to the whole thermoplastic resin composition is 1-5 wt%. The butyl-based rubbers comprise two or more butyl-based rubbers differing in molecular weight. The butyl-based rubbers have a number-average molecular weight of 45,000-60,000. The butyl-based rubbers have a weight-average molecular weight of 200,000-225,000. The butyl-based rubbers have a ratio of the weight-average molecular weight to the number-average molecular weight of 4.0-5.0.
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Inventors:
SHIBUYA TAKASHI (JP)
Application Number:
PCT/JP2023/029580
Publication Date:
March 07, 2024
Filing Date:
August 16, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C03C27/06; C09K3/10; E06B3/663
Domestic Patent References:
| WO2020090721A1 | 2020-05-07 | |||
| WO1997023561A1 | 1997-07-03 | |||
| WO2018199177A1 | 2018-11-01 |
Foreign References:
| JP2013082762A | 2013-05-09 | |||
| CN105385388A | 2016-03-09 |
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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