Hubei Hongxin Chemical OB-1 For PE

Identification & Functionality

CI Number

393

Chemical Name

4,4′-Bis(2-benzoxazolyl)stilbene

Dye Type

Fluorescent Dyes

Plastics & Elastomers Functions

Optical Brightener

CAS No.

1533-45-5

Molecular formula

C28H18N2O2

EC No.

216-245-3

Technologies

Pigments & Colorants,

Plastics

Product Families

Pigments & Colorants — Dyes

Specialty Dyes

Plastics — Polymer Additives

Pigments & Colorants

Structural Formula

Features & Benefits

Materials Features

Excellent Compatibility,

Good Dispersion,

Good Thermal Stability,

Good UV Stability,

Good Weather Stability,

Improves Optical Properties,

Oxidation Resistant,

UV Absorbing,

Whitening

Applications & Uses

Markets

Agriculture & Feed,

Building & Construction,

Consumer Goods,

Electrical & Electronics,

Printing & Packaging

Applications

Agriculture & Feed — Agricultural Films

Pipes & Hoses

Building & Construction — Building Materials

Pipes & Plumbing

Consumer Goods — Housewares

Printing & Packaging — Packaging

Industrial & Transport Packaging,

Non-Food Consumer Packaging,

Other Packaging Materials

Consumer Goods — Sports & Recreation

Electrical & Electronics — Wire & Cable

Jacketing & Insulation

Compatible Polymers & Resins

Polyethylenes (PE)

Plastics & Elastomers End Uses

Bottles,

Cable Jacketing,

Containers,

Cosmetic Packaging,

Film,

Flexible Packaging,

Pipes,

Toys

Plastics & Elastomers Processing Methods

Blow Molding,

Injection Molding

Application

Polyethylene (PE) is one of the five major synthetic resins, which has the largest production capacity and the largest import volume in China. Polyethylene is mainly divided into linear low density polyethylene (LLDPE), low density polyethylene (LDPE) and high density polyethylene (HDPE). Film is its main processing products, followed by sheet and coating, bottles, cans, barrels and other hollow containers and other injection and blow molding products, pipes and wires, cable insulation and sheath. Mainly used in packaging, agriculture and transportation departments.

In the actual production process of PE plastics, plastic manufacturers will add a small amount of plastic additives in order to improve the stability of PE plastics to ultraviolet and oxidation, and to improve processing and use performance. There are some optical brighteners for polyethylene, or called fluorescent brightener, which can absorb the invisible ultraviolet light in natural environment and transfer into visible blue light. The blue light superposed with the yellow light of the polymer itself, and make human eye see a whiter and brightener appearance of the finished product. OB-1 is a kind of optical whitening agent which is very suitable for polyethylene, especially can be used to produce whiter and brightener PE film.

Properties

Color

Green (Fluorescent),

Yellow (Fluorescent)

Physical Form

Powder,

Solid

Typical Properties

	Value	Units	Test Method / Conditions
Molecular Weight	414.4	-	-
Content	min. 98.0	%	-
Melting Point	353-359	℃	-
Maximum Absorption Spectral Wavelength	374	nm	-
Maximum Fluorescence Emission Wavelength	434	nm	-

Packaging & Availability

Packaging Type

Cartons,

Drums