Phosphorescent masterbatch and fiber

Patent metadata

Field	Value
Publication number	US-2016244666-A1
Application number	US-201615008556-A
Country	US
Kind code	A1
Filing date	Jan 28, 2016
Priority date	Feb 25, 2015
Publication date	Aug 25, 2016
Grant date	—

Abstract

A phosphorescent masterbatch includes 1 to 50 parts by weight of a phosphorescent material, 43 to 98.8 parts by weight of a thermoplastic polymer, 0.1 to 5 parts by weight of a dispersing agent, and 0.1 to 2 parts by weight of a nucleating agent, which increases crystallization rate and thermal crystallization temperature of the thermoplastic polymer.

First claim

What is claimed is:

1 . A phosphorescent masterbatch, comprising:
a phosphorescent material in a range from 1 to 50 parts by weight; a thermoplastic polymer in a range from 43 to 98.8 parts by weight; a dispersing agent in a range from 0.1 to 5 parts by weight; and a nucleating agent in a range from 0.1 to 2 parts by weight, and the nucleating agent increasing crystallization rate and crystallization temperature of the thermoplastic polymer.

2 . The phosphorescent masterbatch of claim 1 , wherein a size of the phosphorescent material is in a range from 3 to 100 μm.

3 . The phosphorescent masterbatch of claim 1 , wherein the phosphorescent masterbatch is an aluminate or a silicate.

4 . The phosphorescent masterbatch of claim 3 , wherein the aluminate has a formula of (M1Al 2 O 4 :Eu, M2), where M1 is Mg, Ca, Sr or Ba, and M2 is Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu.

5 . The phosphorescent masterbatch of claim 3 , wherein the silicate has a formula of (M3SiO 4 :Eu, M4), where M3 is Mg, Ca, Sr or Ba, and M4 is Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu.

6 . The phosphorescent masterbatch of claim 1 , wherein the thermoplastic polymer comprises ethylene vinyl acetate(EVA), polyethylene(PE), polypropylene(PP), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), thermoplastic elastomer (TPE), thermoplastic polyether ester elastomer (TPEE), Nylon 6, Nylon 6,6, or a combination thereof.

7 . The phosphorescent masterbatch of claim 1 , wherein the dispersing agent is a wax polymer.

8 . The phosphorescent masterbatch of claim 7 , wherein the wax polymer comprises paraffin oil, bistearylethylenediamide wax, N, N′-ethylenebis(lauramide) wax, polyester wax, polyamide wax, or combinations thereof.

9 . The phosphorescent masterbatch of claim 1 , wherein the dispersing agent comprises maleic anhydride grafted polyethylene or maleic anhydride grafted polypropylene.

10 . The phosphorescent masterbatch of claim 1 , wherein the dispersing agent comprises silane-based coupling agent, titanium-based coupling agent or combinations thereof.

11 . The phosphorescent masterbatch of claim 1 , wherein the nucleating agent increases crystallization temperature of the thermoplastic polymer of 1° C. to 20° C.

12 . The phosphorescent masterbatch of claim 1 , wherein the nucleating agent comprises alkali carboxylate, alkaline carboxylate, aromatic carboxylate, sorbitol derivative, metal carboxylate, organic phosphate, abietic acid, ethylene-methyacrylic acid ionomer or combinations thereof.

13 . The phosphorescent masterbatch of claim 12 , wherein the sorbitol derivative is 1,3:2,4-bis-O-(3,4-dimethylbenzylidene)-D-sorbitol (DMDBS).

14 . The phosphorescent masterbatch of claim 12 , wherein the organic phosphate is sodium 2,2′-methylenebis-(4,6-di-tert-butylphenyl) phosphate.

15 . A phosphorescent fiber, comprising:
a core layer made of a phosphorescent masterbatch, comprising:
a phosphorescent material in a range from 1 to 50 parts by weight;
a thermoplastic polymer in a range from 43 to 98.8 parts by weight;
a dispersing agent in a range from 0.1 to 5 parts by weight; and
a nucleating agent in a range from 0.1 to 2 parts by weight; and
a sheath layer encapsulating the core layer, and a weight ratio between the core layer and the sheath layer being in a range from 10:90 to 90:10.

16 . The phosphorescent fiber of claim 15 , wherein the sheath layer comprises polyester, polyolefin, polyamide or combinations thereof.

Assignees

• Taiwan Textile Res Inst

Inventors

• Lai Wei-Jen
• Hung Huang-Chin
• Chen Su-Chen

Classifications

• C09K11/7792 Primary

  Aluminates · CPC title

• C08K3/24

  Acids; Salts thereof {(C08K3/16 takes precedence)} · CPC title

• D01F8/06

  with at least one polyolefin as constituent · CPC title

• C08L2203/12

  used for fibers · CPC title

• D01D5/34

  Core-skin structure; Spinnerette packs therefor · CPC title