Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...
Patent
1994-10-21
1996-04-02
Mulcahy, Peter D.
Stock material or miscellaneous articles
Hollow or container type article
Glass, ceramic, or sintered, fused, fired, or calcined metal...
52172, 521713, 527861, 5271702, 294695, 29530, E06B 324
Patent
active
055038840
ABSTRACT:
A novel, pumpable, thermoplastic desiccated mastic capable of desiccating a scaled insulating glass unit. The compositions utilize adhesive materials which have a low vapor transmission rate but, nevertheless, have been found to effectively dry the air space in the unit. They do not contribute to chemical fogging and, in preferred embodiments, reduce or eliminate chemical fogging caused by other structures in the assembly. The compositions adhere well to the U-channel material and do not flow or sag under the normal range of service conditions encountered by an insulating glass assembly.
The disclosed compositions comprise:
4-30 weight percent of a film former selected from the group consisting of polyisobutylene polymers having a molecular weight in the range of about 35,000 to about 60,000, and mixtures of such polymers with minor amounts of a butyl rubber having a molecular weight of up to about 500,000;
20-50 weight % of a non-crystalline homopolymer, copolymer, terpolymer or graft copolymer comprising polypropylene;
0-20 weight % of a low volatile UV stable tackifier compatible with the film former and polypropylene components; and
20-50 weight % of an adsorbent component comprising 20-50% by weight of the composition of a moisture or moisture and volatile organic chemical adsorbing material, and 0-10% by weight of the composition of an adsorbent of volatile organic compounds.
REFERENCES:
patent: 4109431 (1978-08-01), Mazzoni et al.
patent: 4198254 (1980-04-01), Laroche et al.
patent: 4431691 (1984-02-01), Greenlee
patent: 4622249 (1986-11-01), Bowser
patent: 4994309 (1991-02-01), Reichert et al.
ASTM, E 773-88, "Standard Test Methods for Seal Durability of Sealed Insulating Glass Units".
Popular Science, Aug., 1992, "Closing the Gaps in Window Efficiency", By Alex Wilson.
Edgetech, A Division of Lauren, Technical Report, "Super Spacer" By Michael Glover and Gerhard Reichert, Sep., 1989.
Meyer Paul J.
Spinks Anne
H. B. Fuller Licensing & Financing Inc.
Mulcahy Peter D.
LandOfFree
Insulating glass unit using pumpable desiccated mastic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Insulating glass unit using pumpable desiccated mastic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insulating glass unit using pumpable desiccated mastic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2015097