Claims
- 1. A composition comprising a blend of:
- a) a migratable additive encapsulated in a first thermoplastic resin having a melting point of between 170.degree. C. to 240.degree. C.; and
- b) a second thermoplastic resin having a melting point of between 120.degree. C. and 180.degree. C.;
- the blend further characterized in that the second thermoplastic resin has a melting point at least 15.degree. C. lower than the melting point of the first thermoplastic resin; and
- the additive is capable of migrating into the second thermoplastic resin.
- 2. A composition according to claim 1, wherein the first thermoplastic resin is linear low density polyethylene or very low density polyethylene.
- 3. A composition according to claim 1 wherein the second thermoplastic resin is an ethylene-vinyl acetate copolymer.
- 4. A composition according to claim 1, wherein the additive is provided in such an amount that the composition contains from 1000 to 4000 ppm by weight thereof.
- 5. A composition according to claim 1, in which the additive is a fungicide, wax or antifogging agent.
- 6. A composition according to claim 5 in which the fungicide is 2,3,5,6-tetrachloro-1,4-benzoquinone; 2,3-dichloro-1,4-naphthoquinone; teramethylthiuram disulphide; disodium ethylenebisdithiocarbamate, heptadecyl-2-imidazolinium acetate; N-(trichloromethylthio)-4-cyclohexane-1,2-carboxamide; N-(trichloromethylthio)-phthalimide; 2,3,5,6-tetrachloronitrobenzene; pentachloronitrobenzene; 1,2,4-trichloro-3,5-dinitrobenzene; 1,3,5-trichloro-3,4,6-trinitrobenzene; hexachlorobenzene or tetracholoroisophthalonitrile.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9004650.9 |
Mar 1990 |
GBX |
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Parent Case Info
This application is a continuation of application Ser. No. 652,699 filed on Feb. 8, 1991, now abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (6)
Number |
Date |
Country |
0197631 |
Oct 1986 |
EPX |
0215480 |
Mar 1987 |
EPX |
0228229 |
Jul 1987 |
EPX |
2100304 |
Feb 1972 |
FRX |
1231569 |
May 1971 |
GBX |
1300640 |
Dec 1972 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
652699 |
Feb 1991 |
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