Number
446-EN
Section
General Section
Use
Sector
Manufacture of fine chemicals
Function
Plasticizer
Process
Other
Product category
Adhesives, sealants
Application
Plasticizer in two-component polyurethane-based secondary sealant for insulating glass units.
Abstract
DINP was part of a two-component polyurethane-based sealant for insulating glass units. DINP is a substance for which several uses are restricted by the REACH Regulation due to concerns for possible effects to human health (Entry 52, REACH Annex XVII). For DINP, reprotoxic effects and effects on development have been reported and it is a suspected endocrine disruptor (EDC). It has been detected in the environment and humans.
While the current use in construction sealants is not yet restricted, it is not clear if it will be so in future and most industries are trying to remove it from their formulations. Also, the company tried to identify and apply a plasticizer that is safer for human health and the environment, and was looking for a non-phthalate alternative.
Substituted substances
Diisononyl phthalate
CAS No. 28553-12-0 EC No. 249-079-5 Index No.
Chemical group
Phtalates
Other adverse effects
The substance is: endocrine disruptor (SIN List), endocrine disruptor cat. 2 (EU EDC database) as listed in the Substance Database according to SUBSPORT Screening Criteria (SDSC).
Alternative Substances
1,2-Cyclohexanedicarboxylic acid, 1,2-diisononyl ester
CAS No. 166412-78-8 EC No. 605-439-7 Index No.
Chemical group
Ester
Reliability of information
Evidence of implementation: there is evidence that the solution was implemented and in use at time of publication
Reason substitution
other reasons
Hazard Assessment
Substances to be substituted:
In 2013, DINP was regarded as a suspected reprotoxic. ECHA conducted a substance evaluation, and in 2018 a conclusion on DINP was finalized. DINP is included on the EDC candidate list (entry 95, Cat.2; source: https://ec.europa.eu/environment/archives/docum/pdf/bkh_annex_01.pdf). Substance included in SIN list: https://sinsearch.chemsec.org/chemical/28553-12-0
Alternative substances:
There is no harmonised classification according to Annex VI of Regulation (EC) No 1272/2008 (CLP Regulation) or entry in the SUBSPORT´s database on hazardous chemicals (SDSC).
Description of Substitution
a) Motivation to apply the alternative
DINCH is currently considered a safe alternative to phthalate-based plasticizers for PVC and other polar polymers. It is a versatile non-phthalate plasticizer specially intended for use in applications that involve human contact. The company wanted to phase out phthalates from their products, yet the main driver was to avoid any possible legal restrictions in future.
b) Description of procedure or technology (including pre-/post-processing):
The plasticizer is mixed in the formulation in accordance with the product recipe and technology - no different than for any other type of plasticizer.
c) Way of application: mixing together with other components in a chemical reactor in a closed system with set temperature and pressure conditions.
d) Risk management measures (technical, organizational and personal):
Adding this substance does not alter any risk management measures that were in place before its use.
e) Advantage or Disadvantage of alternative
Marketing: phthalate-free formulation
Implementation: Avoiding expenses of fast substitution in case further restrictions to phthalates are applied.
Case/substitution evaluation
Many phthalates are often subject to regulation for reprotoxic properties and are also suspected to have endocrine disrupting properties. This alternative describes the well-known alternative DINCH, which has no known or identified hazardous properties.
State of implementation
Full capacity
Availability ofAlternative
The alternatives are available on the market.
Producer/Provider
BASF (Hexamoll DINCH), Evonik (Elatur CH), others.
Type of information supplier
User
Contact
SIA TENACHEM, Spodribas 3, Dobele, Latvia, info@tenachem.com
Further information
SDS of applied substances ? Annex 1_ SDS of Hexamoll DINCH
Measurement data ? risk assessment and life cycle analysis and socio-economic cost assessment prepared in the frame of the LIFE FitforREACH project (C1/C2 reports) ? see as Annex 2
Expert reports e.g. project report ? B1 case report of FitforREACH project ? Annex_3
Examples of successful implementation - ?TENACHEM? Ltd. Tenachem Ltd. is a producer of industrial chemicals, insulating glass and construction sealants, as well as various glues and sealants.
Factsheet: Substitution of diisononyl phthalate (DINP) in secondary sealants for insulating glass units
Publication source: author, company, institute, year
EU-project LIFE Fit for REACH; https://www.fitreach.eu/
Date, reviewed
March 1, 2013