UV-P Benzotriazole UV Absorber Supplier

Sunsorb®p (UV-P) is a benzotriazole UV absorber that strongly absorbs UV light between 300 と 400 nm. It protects clear and light-colored PS, PVC, PMMA, polyester and other plastics against yellowing.

CAS 2440-22-4 · Benzotriazole · UV absorber
Illustration of polymer pellets, molded samples and film
Application illustration — not a photograph of the product

製品概要

UV-P (2-(2H-ベンゾトリアゾール-2-イル)-p-cresol) is a widely used benzotriazole UV absorber with low color. It is used in styrenics, PVC, acrylics, ポリエステル, ポリカーボネート, coatings and adhesives. Its relatively low molecular weight (225.2) suits thicker parts more than thin films processed at high temperature.

Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.

Key Benefits

Strong UV-A/UV-B absorption

Absorbs 300–400 nm, protecting polymer and contents.

Low color

Suits clear and light-colored products.

Broad compatibility

PS, PVC, PMMA, ペット, パソコン, coatings and adhesives.

技術仕様

Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.

ParameterTypical value
製品名UV Absorber UV-P
ブランドSunsorb®p
CAS番号.2440-22-4
化学名2-(2H-ベンゾトリアゾール-2-イル)-p-cresol
分子式C13H11N3O
分子量225.2
外観White to light-yellow crystalline powder
融点128–132 °C
アッセイ≥99%
Volatile Matter≤0.5%
灰≤0.1%

Applications by Material

Pick an application to see how UV-P is normally used and what to confirm before your trial.

Illustration of polymer film, molded components and masterbatch granules
Polymer and coating application illustration

PS, PMMA & Clear Plastics

Protects clear styrenics and acrylics against yellowing; typically 0.1–0.5%.

What to confirm for your application

  • Part thickness
  • Indoor or outdoor exposure
  • Clarity requirement
Discuss this application →

Polyester, コーティング & 接着剤

UV protection in polyester, coatings and adhesives.

What to confirm for your application

  • System type
  • 処理温度
  • Exposure
Discuss this application →

包装 & ストレージ

包装

25 kg net bags or cartons with a PE inner liner. Palletized; private-label packing on request.

ストレージ

Keep sealed in a cool, ドライ, ventilated place away from heat and direct sun. See the SDS for full handling details.

リードタイム & terms

Typically 3–15 business days from order confirmation, depending on quantity. FOB, CIF or DAP to major ports.

テクニカル & Buying Information

Selecting a UV Absorber

Your requirementWhat usually works
Clear or light-colored polyolefin parts and filmBenzophenone (531) or benzotriazole (326) at low loading
High processing temperature (パソコン, ペット, パ)Low-volatility grades: 234, 360 or 1577-type triazines
Thin films and fibersHigher-MW, low-volatility grades so the absorber is not lost in processing
Solvent-borne and waterborne coatingsLiquid benzotriazoles (384-2, 1130) or triazine (400), paired with a HALS
Outdoor service longer than one seasonUV absorber plus a HALS; the absorber filters, the HALS stops radical chains
Exports to the EUCheck REACH status first; some benzotriazoles (327, 328) are restricted
Replacing an existing gradeSend your current TDS or COA; we match on chemistry and the parameters you approve

UV Absorber Comparison

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製品ChemistryMol. weight融点 / formBest fitTypical starting level*
Sunsorb®pBenzotriazole225.2128–132 °CPS, PVC, PMMA, ポリエステル0.1-0.5%
サンソーブ® 326Benzotriazole (Cl)315.8138–141 °CPP, PE, PVC, 接着剤0.1-0.5%
サンソーブ® 329Benzotriazole323.4103–105 °Cパソコン, ペット, PVC, PMMA0.1-0.5%
サンソーブ® 234Benzotriazole447.6137–141 °Cパソコン, ペット, PA at high temperature0.1-0.5%
サンソーブ® 531Benzophenone326.447–49 °CPE, PP, PVC0.1-0.5%

*Starting points for trials, not fixed recommendations. Loading depends on part thickness, pigment, target service life and the HALS used alongside. UV absorbers and HALS work by different mechanisms and are usually combined.

書類 & 品質

COA — 分析証明書

Issued for every batch shipped, with the test results for that lot.

TDS — 技術データシート

Typical properties and specification for evaluation and supplier approval.

SDS — Safety Data Sheet

GHS-format handling, storage and transport information.

サンプル

Lab samples for evaluation; tell us the test you plan to run so the sample size fits.

Third-party testing

SGS or Intertek testing can be arranged on request.

Regulatory statements

到着, food-contact and other statements are issued per grade and destination; ask before ordering.

UV Absorber UV-P Buyer Guide

Define the exposure

Indoor light behind glass, outdoor temperate climate and desert or tropical exposure need very different packages. Note the target service life and the weathering test you use (xenon or QUV, 時間, ΔE or gloss retention).

Match absorber to process and thickness

A UV absorber works by filtering, so it needs enough path length: thick parts need less, thin films and fibers need more and need a low-volatility grade. Check the absorber survives your processing temperature.

Combine with a HALS

For outdoor use the standard approach is UV absorber plus HALS. Send your current package and pigment system and we suggest a starting combination for the trial.

Check regulations before you buy

Some benzotriazoles are restricted in the EU and other markets. Tell us the destination and end use, and we confirm the REACH and food-contact position of the grade before you order.

Request a Quotation for UV Absorber UV-P

Start with your material, part thickness, 数量と送り先. Add your current UV package and we will quote against it.

InformationExample
Polymer / MaterialPP, PE, ABS, 化合物, マスターバッチ
応用Injection molding, 押し出し, 膜, ファイバ
Current additiveGrade or supplier you use today
Required specificationYour TDS, COA or key limits
QuantityTrial order / monthly / annual volume
包装Standard 25 kg or specific requirement
DestinationCountry and port
Documents neededCOA, SDS, 到着, food-contact statement
Send RFQ by EmailContact SUNCHEM →

Related UV Absorbers & 安定剤

サンソーブ® 326

Chlorinated benzotriazole UV absorber for polyolefins, PVC and adhesives.

View product →

サンソーブ® 329

Benzotriazole UV absorber for PC, ペット, PVC and PMMA.

View product →

サンソーブ® 234

High-MW benzotriazole for high-temperature engineering plastics.

View product →

サンソーブ® 531

Benzophenone UV absorber for polyolefins and PVC, cost-effective and widely used.

View product →

UV Absorber UV-P FAQ

Is UV-P suitable for thin films?

Its low molecular weight makes it volatile at high processing temperatures. For thin films and fibers, higher-MW grades such as 234 また 360 are usually better.

What dosage is typical?

0.1–0.5% depending on thickness and exposure, often with a HALS for outdoor use.

Does UV-P color the product?

It has low inherent color and is used in clear products.

Can I get a sample before ordering?

はい. Tell us the polymer, the test you plan to run and the quantity you need. Samples ship with a COA so you can compare the lot against your current material.

What if a COA does not match our agreed specification?

Send us the agreed specification and the COA showing the difference (parameter, unit and test method). We check it with the production batch record before you accept the material, and replace or re-test where the lot is out of specification.

Discuss Your UV Absorber UV-P Requirements

Send your application, specification and quantity to request a quotation or supporting documents.

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