Adhesive for solar control film
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
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
141000* -- Solar Collectors & Concentrators
ADHESION
ADHESIVES
ALCOHOLS
CHEMICAL ACTIVATION
CHEMICAL COMPOSITION
ELEMENTS
EQUIPMENT
ESTERS
FILMS
GLASS
GLYCEROL
GLYCOLS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
ISOCYANATES
MATERIALS
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYESTERS
POLYMERS
SILANES
SILICON COMPOUNDS
SOLAR ABSORBERS
SOLAR EQUIPMENT
SPECTRALLY SELECTIVE SURFACES
SURFACES
SYNTHETIC MATERIALS
THERMOPLASTICS
WATER