Peelable seals using polybutylene
Patent
·
OSTI ID:6021138
A new composition for producing a peelable heat seal between substrates is described comprising a blend of about 6 to about 25 weight percent of polybutylene having a melt index of about 0.1 to about 500, about 2 to about 15 weight percent of polypropylene, and about 60 to about 92 weight percent of a blend of anhydride modified polyethylene with EVA copolymers. The blend, when coated onto nylon at a heat sealing temperature of between about 320/sup 0/F and about 410/sup 0/F as determined at the sealing jaws, affords a peel strength of about 0.4 to about 5 pounds per inch between blend layers heat sealed at the heat sealing temperatures.
- Assignee:
- Shell Oil Co., Houston, TX
- Patent Number(s):
- US 4808662
- OSTI ID:
- 6021138
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
023000 -- Petroleum-- Properties & Composition
ANHYDRIDES
CHEMICAL COMPOSITION
COATINGS
COPOLYMERS
DEPOSITION
MATERIALS
MATERIALS TESTING
MELTING POINTS
NONDESTRUCTIVE TESTING
NYLON
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
POLYAMIDES
POLYMERS
POLYOLEFINS
POLYPROPYLENE
PROTECTIVE COATINGS
QUANTITY RATIO
SEALS
SUBSTRATES
SYNTHETIC MATERIALS
TESTING
THERMAL INSULATION
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
020500* -- Petroleum-- Products & By-Products
023000 -- Petroleum-- Properties & Composition
ANHYDRIDES
CHEMICAL COMPOSITION
COATINGS
COPOLYMERS
DEPOSITION
MATERIALS
MATERIALS TESTING
MELTING POINTS
NONDESTRUCTIVE TESTING
NYLON
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
POLYAMIDES
POLYMERS
POLYOLEFINS
POLYPROPYLENE
PROTECTIVE COATINGS
QUANTITY RATIO
SEALS
SUBSTRATES
SYNTHETIC MATERIALS
TESTING
THERMAL INSULATION
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE