Adhesive for solar control film

Patent · Tue Jan 31 00:00:00 EST 1984

OSTI ID:6924659

Penn, H J

A water-activatable adhesive useful for adhering a solar film, polyester (polyethylene terephthalate) film, to glass or to metal substrates. The adhesive comprises the reacted product of (A) gamma-isocyanatopropyltriethoxy silane, containing a free isocyanate (NCO) group, and (B) a thermoplastic polyester formed by reacting (i) a dibasic acid selected from the group consisting of terephthalic acid, isophthalic acid and hexahydrophthalic acid, and mixtures thereof, with (ii) a polymethylene glycol of the formula HO(CH/sub 2/) /SUB x/ OH where x is an integer from 2 to 10, neopentyl glycol and glycerin, and mixtures thereof, and (iii) an aliphatic dibasic acid selected from the group consisting of those having the formula HOOC(CH/sub 2/) /SUB n/ COOH where n is an integer from 1 to 8, and mixtures of such acids, whereby substantially no free NCO remains in the adhesive. Solar film is used for absorbing and/or reflecting solar radiation. Solar film can be a single sheet of polyester dyed sufficiently to absorb the glare of bright sunlight, or it can be a single sheet of polyester, on one side of which a reflective metal (most often aluminum) is deposited in an amount which can be totally reflective or in an amount which still allows visible light transmission and over which a protective coating is deposited, or it can be a laminated structure of the reflective film adhered to a clear or dyed polyester film by which means the reflective metal is sandwiched between two layers of polyester film, or it can be a laminated structure of a reflective film to a polyolefin film.

• Assignee: Morton Thiokol, Inc.
• Patent Number(s): US 4429005
• OSTI ID: 6924659
• Resource Relation: Patent File Date: Filed date 14 Jun 1982; Other Information: PAT-APPL-388488
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
ADHESIVES
CHEMICAL COMPOSITION
SOLAR ABSORBERS
ADHESION
CHEMICAL ACTIVATION
FILMS
GLASS
GLYCEROL
GLYCOLS
ISOCYANATES
METALS
POLYESTERS
SILANES
SPECTRALLY SELECTIVE SURFACES
THERMOPLASTICS
WATER
ALCOHOLS
ELEMENTS
EQUIPMENT
ESTERS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
SILICON COMPOUNDS
SOLAR EQUIPMENT
SURFACES
SYNTHETIC MATERIALS
141000* - Solar Collectors & Concentrators