Article with visual effects

Patent metadata

Field	Value
Publication number	US-11161966-B2
Application number	US-201715401160-A
Country	US
Kind code	B2
Filing date	Jan 9, 2017
Priority date	Jan 18, 2016
Publication date	Nov 2, 2021
Grant date	Nov 2, 2021

Abstract

A blow molded article, a method of making a blow molded article and a method of making a preform each having at least one layer comprising a thermoplastic resin and between 0.1% and 20% of an additive having a viscosity of greater than 1,000,000 cst. There is a refractive index difference of at least 0.04 between the additive and the thermoplastic resin. The high viscosity of the additive ensures even distribution of the additive within the thermoplastic resin in discrete domains, while additionally providing for a complex end look balancing opacity, gloss and depth.

First claim

What is claimed is:

1. An injection stretched blow molded bottle with an improved visual effect comprising a neck and a body wherein the body comprises at least one layer comprising:
a) more than 50 wt. % of a thermoplastic resin selected from the group consisting of polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG), polyethylene naphthalate (PEN), post-consumer recycled polyethylene terephthalate (PCRPET), and combinations thereof;
b) between about 0.1 wt. % and about 20 wt. % of an additive comprising a viscosity of from about 2,500,000 to about 50,000,000 cst;
c) between about 10 to about 1000 discrete domains of the additive per 1000 μm 3 of the at least one layer, wherein the discrete domains are dispersed throughout the at least one layer; wherein the domains comprise a length, a width, and a thickness and wherein the domains are considerably longer than they are thick and/or wide;
wherein there is a refractive index difference of at least about 0 . 04 between the additive and the thermoplastic resin;
wherein the body further comprises a high gloss outer surface.

2. An injection stretch blow molded bottle as in claim 1 , wherein the thermoplastic resin is PET.

3. An injection stretch blow molded bottle as in claim 1 , wherein the additive is selected from a group consisting of an alcohol, oil, siloxane fluid, water, and a combination thereof.

4. An injection stretch blow molded bottle as in claim 3 , wherein the additive is a siloxane fluid.

5. An injection stretch blow molded bottle as in claim 1 , comprising between about 0.5 wt. % to about 10 wt. % of additive.

6. An injection stretch blow molded bottle as in claim 1 , wherein the refractive index of the thermoplastic resin is higher than that of the additive.

7. An injection stretch blow molded bottle as claimed in claim 1 , wherein at least about 50 wt. % of the domains in the body comprise an aspect ratio of greater than 0.

8. An injection stretch blow molded bottle as claimed in claim 1 , wherein at least about 50 wt. % of the discrete domains in the body comprise an aspect ratio of between about 0.4 to about 0.9.

9. An injection stretch blow molded bottle as in claim 8 , wherein the neck comprises at least one layer comprising:
a) a thermoplastic resin;
b) between about 0.1 wt. % and about 20 wt. % of an additive comprising a viscosity of from about 2,500,000 to about 50,000,000 cst;
c) discrete domains of the additive, wherein the discrete domains are dispersed throughout the at least one layer; wherein the domains comprise an aspect ratio.

10. An injection stretch blow molded bottle as in claim 9 , wherein the aspect ratio of the domains in the neck are considerably lower than the aspect ratio of the domains in the body.

11. An injection stretch blow molded bottle as in claim 9 , wherein at least about 50 wt. % of the discrete domains in the neck comprise an aspect ratio of between about 0.02 to about 0.8.

12. An injection stretch blow molded bottle as in claim 1 , wherein the body consists of one layer.

13. An injection stretch blow molded bottle with an improved visual effect comprising a neck and a body wherein the body comprises at least one layer comprising:
a) more than 50 wt. % of a thermoplastic resin selected from the group consisting of polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG), polyethylene naphthalate (PEN), polyethylene terephthalate (PCRPET), and combinations thereof;
b) between about 0.1 wt. % and about 20 wt. % of an additive comprising a viscosity from about 2 , 500 , 000 cst to about 50 , 000 , 000 cst wherein the additive comprises a siloxane fluid;
c) between about 10 to about 1000 discrete domains of the additive per 1000 pm 3 of the at least one layer, wherein the discrete domains are dispersed throughout the at least one layer, wherein there is a refractive index difference of at least about 0.04 between the additive and the thermoplastic resin, wherein the body further comprises a high gloss outer surface, wherein the domains comprise a length, a width, and a thickness and wherein the domains are considerably longer than they are thick and/or wide.

14. An injection stretch blow molded bottle as in claim 13 , wherein the siloxane fluid comprises polydimethylsiloxane.

15. An injection stretch blow molded bottle as in claim 13 , wherein the thermoplastic resin is PET.

16. An injection stretch blow molded bottle as in claim 13 , wherein at least about 50 wt. % of the domains in the body comprise an aspect ratio of greater than 0.

Assignees

• Procter & Gamble

Inventors

• Agerton Mark Lewis
• Mamak Marc Andrew
• Mcdaniel John Andrew

Classifications

• B29C49/0411

  Means for defining the wall or layer thickness · CPC title

• B29C49/0005 Primary

  characterised by the material · CPC title

• B29K2105/0094

  having particular viscosity · CPC title

• B29L2031/7158

  Bottles · CPC title

• C08K5/5419 Primary

  containing at least one Si—C bond · CPC title